Edgar Filing: MORGAN STANLEY QUALITY MUNICIPAL INCOME TRUST

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-06591

Morgan Stanley Quality Municipal Income Trust

(Exact name of registrant as specified in charter)

522 Fifth Avenue, New York, New York

10036

(Address of principal executive offices)

(Zip code)

Ronald E. Robison

522 Fifth Avenue, New York, New York 10036

(Name and address of agent for service)

Registrant’s telephone number, including area code: 212-296-6990

Date of fiscal year end: October 31, 2008

Date of reporting period: April 30, 2008

Item 1 - Report to Shareholders

Welcome, Shareholder:

In this report, you’ll learn about how your investment in Morgan Stanley Quality Municipal Income Trust performed during the semiannual period. We will provide an overview of the market conditions, and discuss some of the factors that affected performance during the reporting period. In addition, this report includes the Trust’s financial statements and a list of Trust investments.

Market forecasts provided in this report may not necessarily come to pass. There is no assurance that the Trust will achieve its investment objective. The Trust is subject to market risk, which is the possibility that market values of securities owned by the Trust will decline and, therefore, the value of the Trust’s shares may be less than what you paid for them. Accordingly, you can lose money investing in this Trust.

Income earned by certain securities in the portfolio may be subject to the federal alternative minimum tax (AMT).

Fund Report

For the six months ended April 30, 2008

Market Conditions

The six-month period under review was marked by disrupted credit markets, recession fears, deterioration of the housing market, and markdowns in the mortgage market as a result of forced selling. Although the fixed income market saw some improvements in the last month of the period, many of the same concerns and problems remained.

The Federal Reserve (the ‘‘Fed’’) stepped in several times during the period to minimize the liquidity crisis. Not only did the Federal Open Market Committee reduce the target federal funds rate several times, from 4.5 percent to 2.0 percent, but in an unprecedented move, the Fed granted primary Treasury dealers (mostly brokerage firms) access to its discount window and loosened its collateral requirements, extending loans of Treasury securities in exchange for lower quality, less liquid securities. Finally, in what was most decidedly the biggest headline event, the Fed arranged and supported JPMorgan Chase’s purchase of Bear Stearns, which was viewed by many as necessary to avoid serious market repercussions had the firm failed.

The decline in short-term interest rates, coupled with the risk-averse environment during the period pushed Treasury yields lower, especially on the short end of the yield curve, causing the curve to steepen. The municipal yield curve steepened as well, with the yield differential between one-year and 30-year maturities reaching more than 300 basis points. Overall, municipal bonds underperformed their taxable counterparts as credit rating downgrades of various monoline bond insurers and the deterioration of the auction rate and variable rate markets posed additional challenges for the sector. After a record year for new municipal bond issuance in 2007, the amount of new issues coming to market in the first four months of 2008 declined.

Performance Analysis

For the six-month period ended April 30, 2008, the net asset value (NAV) of Morgan Stanley Quality Municipal Income Trust (IQI) decreased from $14.50 to $13.80 per share. Based on this change plus reinvestment of tax-free dividends totaling $0.345 per share, the Trust’s total NAV return was −2.18 percent. IQI’s value on the New York Stock Exchange (NYSE) moved from $12.90 to $12.62 per share during the same period. Based on this change plus reinvestment of dividends, the Trust’s total market return was 0.55 percent. IQI’s NYSE market price was at an 8.55 percent discount to its NAV. During the fiscal period, the Trust purchased and retired 281,578 shares of common stock at a weighted average market discount of 10.49 percent. Past performance is no guarantee of future results.

Monthly dividends for the second quarter of 2008, declared in April, were unchanged at $0.0575 per share. The dividend reflects the current level of the Trust’s net investment income. IQI’s level of undistributed net investment income was $0.034 pershare on April 30, 2008 versus $0.013 per share six months earlier.1

Throughout the six-month period, the Trust maintained a lower interest rate sensitivity (as measured by duration*), which was implemented through the use of a U.S. Treasury futures hedge. This defensive positioning benefited performance as it helped to minimize the price declines that resulted from rising yields across the intermediate and long end of the municipal yield curve.

In terms of the Trust’s sector positioning, an overweight in the hospital/life care and tobacco sectors detracted from relative performance as spread widening in those sectors hindered returns. Conversely, an overweight in the public utility sector, particularly water and sewer bonds, benefited performance. The flight to quality that took place during the period helped boost the performance of the more solid infrastructure sectors such as utilities and the Trust’s holdings there enhanced returns.

The Trust’s procedure for reinvesting all dividends and distributions in common shares is through purchases in the open market. This method helps support the market value of the Trust’s shares. In addition, we would like to remind you that the Trustees have approved a procedure whereby the Trust may, when appropriate, purchase shares in the open market or in privately negotiated transactions at a price not above market value or net asset value, whichever is lower at the time of purchase. The Trust may also utilize procedures to reduce or eliminate the amount of Auction Rate Preferred Shares (ARPS) outstanding, including their purchase in the open market or in privately negotiated transactions.

Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. Investment return, net asset value and common share market price will fluctuate and Trust shares, when sold, may be worth more or less than their original cost.

There is no guarantee that any sectors mentioned will continue to perform as discussed herein or that securities in such sectors will be held by the Trust in the future.

1 Income earned by certain securities in the portfolio may be subject to the federal alternative minimum tax (AMT).

* A measure of the sensitivity of a bond’s price to changes in interest rates, expressed in years. Each year of duration represents an expected 1 percent change in the price of a bond for every 1 percent change in interest rates. The longer a bond’s duration, the greater the effect of interest-rate movements on its price. Typically, trusts with shorter durations perform better in rising-interest-rate environments, while trusts with longer durations perform better when rates decline. Duration calculations are adjusted for leverage.

TOP FIVE SECTORS as of 04/30/08 General Obligation 16.6 % Water & Sewer 13.4 Hospital 10.5 Transportation 10.3 Tobacco 6.8

LONG-TERM CREDIT ANALYSIS as of 04/30/08 Aaa/AAA 38.1 % Aa/AA 29.9 A/A 16.4 Baa/BBB 11.6 Ba/BB 1.9 NR 2.1

SUMMARY OF INVESTMENTS BY STATE
CLASSIFICATION as of 04/30/08 California 30.0 % Texas 20.6 New York 18.2 New Jersey 11.9 Florida 8.0 Hawaii 7.6 Washington 6.0 Georgia 5.8 Indiana 5.4 Illinois 5.2 Arizona 5.2 South Carolina 4.9 Michigan 4.9 Pennsylvania 4.4 Nevada 4.2 Ohio 3.3 Maryland 3.2 Tennessee 3.0 Nebraska 2.9 Colorado 2.8 District of Columbia 1.8

SUMMARY OF INVESTMENTS BY STATE
CLASSIFICATION as of 04/30/08 (continued) Kentucky 1.6 % Connecticut 1.5 North Carolina 1.4 Virginia 1.4 Alabama 1.2 Idaho 1.2 Misssouri 1.1 Alaska 1.0 New Mexico 0.9 Montana 0.9 Kansas 0.8 North Dakota 0.8 Vermont 0.6 Minnesota 0.6 Oklahoma 0.4 Delaware 0.3 Total Long-Term Investments† 175.0 Short-Term Investment 5.8 Liability for Floating Rate Note Obligations (19.1 ) Other Assets in Excess of Liabilities 2.5 Preferred Shares of Beneficial Interest (64.2 ) Net Assets Applicable to Common Shareholders 100.0 %

† Does not include open long/short futures contracts with an underlying face amount of $149,659,206 with total unrealized depreciation of of $81,901 and open swap contracts with unrealized depreciation of $119,794.

Subject to change daily. Provided for informational purposes only and should not be deemed as a recommendation to buy or sell the securities mentioned or securities in the sectors shown above. Top five sectors are as a percentage of total investments. Long-term credit analysis are as a percentage of long-term investments. Summary of investments by state classification are as a percentage of net assets applicable to common shareholders. Securities are classified by sectors that represent broad groupings of related industries. Morgan Stanley is a full-service securities firm engaged in securities trading and brokerage activities, investment banking, research and analysis, financing and financial advisory services. Rating allocations based upon ratings as issued by Standard and Poor’s and Moody’s, respectively.

For More Information About Portfolio Holdings

Each Morgan Stanley trust provides a complete schedule of portfolio holdings in its semiannual and annual reports within 60 days of the end of the trust’s second and fourth fiscal quarters. The semiannual reports and the annual reports are filed electronically with the Securities and Exchange Commission (SEC) on Form N-CSRS and Form N-CSR, respectively. Morgan Stanley also delivers the semiannual and annual reports to trust shareholders and makes these reports available on its public web site, www.morganstanley.com. Each Morgan Stanley trust also files a complete schedule of portfolio holdings with the SEC for the trust’s first and third fiscal quarters on Form N-Q. Morgan Stanley does not deliver the reports for the first and third fiscal quarters to shareholders, nor are the reports posted to the Morgan Stanley public web site. You may, however, obtain the Form N-Q filings (as well as the Form N-CSR and N-CSRS filings) by accessing the SEC’s web site, http://www.sec.gov. You may also review and copy them at the SEC’s public reference room in Washington, DC. Information on the operation of the SEC’s public reference room may be obtained by calling the SEC at (800) SEC-0330. You can also request copies of these materials, upon payment of a duplicating fee, by electronic request at the SEC’s e-mail address (publicinfo@sec.gov) or by writing the public reference section of the SEC, Washington, DC 20549-0102.

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited)

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE Tax-Exempt Municipal Bonds (175.0%) Alabama (1.2%) $ 3,700 University of Alabama, Ser 2004-A (MBIA Insd) 5.25 % 07/01/22 $ 3,926,551 Alaska (1.0%) 4,000 Northern Tobacco Securitization Corporation, Asset Backed Ser 2006 A 5.00 06/01/46 3,125,400 Arizona (5.2%) 2,000 Arizona Transportation Board, Highway Refg Ser 2002 A 5.25 07/01/19 2,152,580 3,000 Phoenix Civic Improvement Corporation, Airport Ser 2002 B
(AMT) (FGIC Insd) 5.25 07/01/32 2,896,260 3,800 Phoenix Civic Improvement Corporation, Jr Lien Water Ser 2002 (FGIC Insd) 5.00 07/01/26 3,878,508 6,000 Salt River Project Agricultural Improvement & Power District,
2002 Ser B 5.00 01/01/31 6,096,900 2,000 Surprise Municipal Property Corporation Ser 2007 4.90 04/01/32 1,758,060 16,782,308 California (30.0%) 10,000 California Economic Recovery Ser 2004 A 5.00 07/01/16 10,481,000 2,000 California Health Facilities Financing Authority, Cedars-Sinai
Medical Center Ser 2005 5.00 11/15/34 1,951,160 2,000 California Health Facilities Financing Authority, Kaiser Permanente Ser 2006 A 5.25 04/01/39 1,987,800 5,000 California Infrastructure & Economic Development Bank, Bay Area Toll Bridges Seismic Retrofit First Lien Ser 2003 A (AMBAC Insd) 5.00 01/01/28 (a) 5,340,650 3,000 California Infrastructure & Economic Development Bank,
The Scripps Research Institute Ser 2005 A 5.00 07/01/29 3,074,220 6,000 California Pollution Control Financing Authority, Keller Canyon
Landfill Co/Browning-Ferris Industries Inc Ser 1992 (AMT) 6.875 11/01/27 6,000,060 5,000 California Statewide Communities Development, John Muir Health Ser 2006 A 5.00 08/15/32 4,869,300 4,000 California Statewide Communities Development,
Baptist University Ser 2007 A 5.40 11/01/27 3,830,320 5,000 California, Various Purpose Dtd 05/01/03 5.25 02/01/19 5,268,450 16,000 California, Various Purpose Dtd 11/01/06 (b) 4.50 10/01/36 14,884,480 6,000 Golden State Tobacco Securitization Corporation,
Enhanced Asset Backed Ser 2005 A (AMBAC Insd) 5.00 06/01/29 5,877,240 4,000 Golden State Tobacco Securitization Corporation,
Enhanced Asset Backed Ser 2007 A 5.75 06/01/47 3,591,560

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE $ 8,000 Golden State Tobacco Securitization Corporation,
Enhanced Asset Backed Ser 2007 A-1 5.125 % 06/01/47 $ 6,474,480 4,000 Los Angeles Ser 2004 A (MBIA Insd) 5.00 09/01/24 4,135,680 4,000 Port of Oakland Ser 2002 L (AMT) (FGIC Insd) 5.00 11/01/32 3,737,680 3,720 San Diego County Water Authority Ser 2002 A COPs (MBIA Insd) 5.00 05/01/27 3,804,146 1,000 San Diego County, Burnham Institute for Medical Research
Ser 2006 COPs 5.00 09/01/34 871,360 16,000 Silicon Valley Tobacco Securitization Authority Tobacco Settlement,
Santa Clara Tobacco Securitization Corp Ser 2007 0.00 06/01/36 2,153,280 5,000 Tobacco Securitization Authority of Northern California,
Sacramento County Tobacco Securitization Corporation
Ser 2006 A-1 5.00 06/01/37 4,155,100 2,600 University of California Ser 2007-J (FSA Insd) (b) 4.50 05/15/31 2,505,828 2,400 University of California Ser 2007-J (FSA Insd) (b) 4.50 05/15/35 2,313,072 97,306,866 Colorado (2.8%) 1,750 Boulder County, University Corp for Atmospheric Research
Ser 2002 (MBIA Insd) 5.375 09/01/18 1,847,317 1,750 Boulder County, University Corp for Atmospheric Research
Ser 2002 (MBIA Insd) 5.375 09/01/21 1,847,318 2,000 Colorado Educational & Cultural Facilities Authority, Peak to Peak
Charter School Refg & Impr Ser 2004 (XLCA Insd) 5.25 08/15/34 2,025,480 2,000 Colorado Health Facilities Authority, Adventist/Sunbelt Ser 2006 D 5.25 11/15/35 1,957,200 1,590 Denver Convention Center Hotel Authority Refg Ser 2006
(XLCA Insd) 5.00 12/01/30 1,468,492 9,145,807 Connecticut (1.5%) 5,000 Connecticut Housing Finance Authority, SubSer A-2 (AMT) 5.15 05/15/38 4,744,050 Delaware (0.3%) 1,000 New Castle County, Newark Charter School Inc Ser 2006 5.00 09/01/36 833,160 District of Columbia (1.8%) 6,000 District of Columbia Ballpark Ser 2006 B-1 (FGIC Insd) 5.00 02/01/31 5,664,780 Florida (8.0%) 3,000 Broward County School Board Ser 2001 A COPs (FSA Insd) 5.00 07/01/26 3,033,510 3,500 Broward County Water & Sewer Utility Ser 2003 (MBIA Insd) 5.00 10/01/24 3,601,850 3,000 Highlands County Health Facilities Authority,
Adventist Health/Sunbelt Ser 2006 C 5.25 11/15/36 2,941,230

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE $ 3,300 Jacksonville Electric Authority, St Johns Power Park
Refg Issue 2 Ser 17 5.00 % 10/01/18 $ 3,420,945 1,500 Lee County Industrial Development Authority, Shell Point Village/
The Alliance Community for Retirement Living Inc, Ser 2006 5.125 11/15/36 1,274,805 12,000 South Miami Health Facilities Authority, Baptist Health
South Florida Ser 2007 (b) 5.00 08/15/42 11,799,900 26,072,240 Georgia (5.8%) 3,000 Atlanta, Airport Ser 2004 J (FSA Insd) 5.00 01/01/34 3,049,110 6,000 Georgia State Road & Tollway Authority Ser 2004 5.00 10/01/22 6,286,560 9,000 Georgia State Road & Tollway Authority Ser 2004 5.00 10/01/23 9,387,090 18,722,760 Hawaii (7.6%) 5,000 Hawaii, 1992 Ser BZ 6.00 10/01/10 5,407,050 8,000 Hawaii, 1992 Ser BZ 6.00 10/01/11 8,829,040 10,000 Honolulu City & County Ser 2003 A (MBIA Insd) (b) 5.25 03/01/26 10,389,400 24,625,490 Idaho (1.2%) 110 Idaho Housing Agency, 1992 Ser E (AMT) 6.75 07/01/12 112,009 945 Idaho Housing & Finance Association, 2000 Ser E (AMT) 6.00 01/01/32 970,222 2,600 Idaho Housing & Finance Association 2008 Ser A 5.25 07/15/23 2,782,208 3,864,439 Illinois (5.2%) 4,000 Chicago, O’Hare Int’l Airport Third Lien Ser 2003 B-2
(AMT) (FSA Insd) 5.75 01/01/23 4,136,240 4,000 Cook County Ser 1992 C (FGIC Insd) 6.00 11/15/09 4,223,800 6,000 Illinois, First Ser 2002 (MBIA Insd) 5.375 07/01/20 6,373,980 2,000 Schaumburg Ser 2004 B (FGIC Insd) 5.25 12/01/34 2,071,920 16,805,940 Indiana (5.4%) 10,000 Indiana Bond Bank, Revolving Fund Ser 2001 A 5.00 02/01/23 10,316,700 6,000 Indiana Health & Educational Facility Financing Authority,
Clarian Health Ser 2006 A 5.25 02/15/40 5,850,120 1,400 Marion County Convention & Recreational Facilities Authority,
Refg Ser 2003 A (AMBAC Insd) 5.00 06/01/21 1,444,618 17,611,438

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE Kansas (0.8%) $ 3,000 University of Kansas Hospital Authority, KU Health Ser 2002 4.50 % 09/01/32 $ 2,623,650 Kentucky (1.6%) 5,000 Louisville & Jefferson County Metropolitan Sewer District,
Ser 1999 A (FGIC Insd) 5.75 05/15/33 5,172,700 Maryland (3.2%) 2,000 Baltimore County, Oak Crest Village Ser 2007 A 5.00 01/01/37 1,832,200 3,000 Maryland Health & Higher Educational Facilities Authority,
King Farm Presbyterian Community 2006 Ser B 5.00 01/01/17 2,894,430 1,500 Maryland Health & Higher Educational Facilities Authority,
University of Maryland Medical Ser 2002 6.00 07/01/12 (a) 1,668,525 2,000 Maryland Health & Higher Educational Facilities Authority,
University of Maryland Medical Ser 2006 A 5.00 07/01/41 1,940,020 2,000 Northeast Maryland Waste Disposal Authority, Montgomery
County Ser 2003 (AMT) (AMBAC Insd) 5.50 04/01/16 2,063,980 10,399,155 Michigan (4.9%) 6,000 Michigan Hospital Finance Authority, Henry Ford Health
Refg Ser 2006 A 5.25 11/15/46 5,810,160 5,000 Michigan Strategic Fund, Detroit Edison Co Ser 2001 C (AMT) 5.65 09/01/29 5,023,650 3,000 Wayne County, Detroit Metropolitan Wayne County Airport
Refg Ser 2002 D (AMT) (FGIC Insd) 5.50 12/01/17 3,049,980 1,855 Wayne State University, Refg Ser 2008 (FSA Insd) 5.00 11/15/25 1,946,433 15,830,223 Minnesota (0.6%) 2,000 Western Minnesota Municipal Power Agency, 2003 Ser A
(MBIA Insd) 5.00 01/01/30 2,007,300 Missouri (1.1%) 2,250 Gravois Bluffs Transportation Development District,
Sales Tax Ser 2007 4.75 05/01/32 1,972,305 1,500 Missouri Health & Educational Facilities Authority,
Lutheran Senior Services Ser 2005 A 5.375 02/01/35 1,445,295 180 Missouri Housing Development Commission, Homeownership
Ser 2000 B-1 (AMT) 6.25 03/01/31 185,031 3,602,631

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE Montana (0.9%) $ 2,825 Montana Board of Housing, 2000 Ser B (AMT) 6.00 % 12/01/29 $ 2,859,069 Nebraska (2.9%) 9,940 Nebraska Investment Financial Authority, Single Family Housing
Ser 2007 E (AMT) (b) 5.15 09/01/38 9,428,786 Nevada (4.2%) 2,000 Clark County, Airport SubLien Ser 2004 A-1 (AMT) (FGIC Insd) 5.50 07/01/20 2,026,420 1,000 Clark County, Jet Aviation Fuel Tax Ser 2003 C
(AMT) (AMBAC Insd) 5.375 07/01/19 1,013,640 1,100 Clark County, Jet Aviation Fuel Tax Ser 2003 C
(AMT) (AMBAC Insd) 5.375 07/01/20 1,114,256 2,000 Clark County, Jet Aviation Fuel Tax Ser 2003 C
(AMT) (AMBAC Insd) 5.375 07/01/22 2,018,240 5,345 Las Vegas Valley Water District, Water Impr Refg Ser 2003 A
(FGIC Insd) 5.25 06/01/20 5,632,508 2,000 Reno, Renown Regional Medical Center Ser 2007 A 5.25 06/01/37 1,883,600 13,688,664 New Jersey (11.9%) 2,000 New Jersey Economic Development Authority,
Cigarette Tax Ser 2004 5.75 06/15/29 1,961,520 1,565 New Jersey Housing Mortgage Finance Authority, Home Buyer
Ser 2000 CC (AMT) (MBIA Insd) 5.875 10/01/31 1,602,716 5,000 New Jersey Transportation Trust Fund Authority, 1999 Ser A 5.75 06/15/20 5,758,500 12,000 New Jersey Turnpike Authority, Ser 2003 A (FGIC Insd) (c) 5.00 01/01/27 12,053,400 10,000 Passaic Valley Sewerage Commissioners Ser F (FGIC Insd) 5.00 12/01/20 10,361,600 5,000 Tobacco Settlement Financing Corporation Ser 2007-1 A 4.625 06/01/26 4,271,900 6,000 Tobacco Settlement Financing Corporation Ser 2007-1 B 0.00 06/01/41 535,200 2,000 University of Medicine & Dentistry Ser 2004 COPs (MBIA Insd) 5.25 06/15/23 2,054,640 38,599,476 New Mexico (0.9%) 3,000 Rio Rancho, Water & Wastewater Refg Ser 1999 (AMBAC Insd) 5.25 05/15/19 3,047,490 New York (18.2%) 10,000 Metropolitan Transportation Authority, Transportation
Refg Ser 2002 A (FGIC Insd) 5.00 11/15/25 10,072,400 5,000 Nassau County Tobacco Settlement Corporation Ser 2006 A-3 5.125 06/01/46 4,480,300 3,500 New York City Municipal Water Finance Authority Ser A-2003 5.375 06/15/19 3,721,515 18,000 New York City Municipal Water Finance Authority 2002 Ser B 5.00 06/15/26 18,294,480 10,000 New York City Municipal Water Finance Authority 2004 Ser A 5.00 06/15/35 10,134,700

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE $ 2,000 Seneca Nation of Indians Ser 2007 A (d) 5.00 % 12/01/23 $ 1,779,680 5,000 Tobacco Settlement Financing Corporation, State Contingency
Ser 2003 B-1C 5.50 06/01/17 5,197,850 5,000 Triborough Bridge & Tunnel Authority Refg 2002 E (MBIA Insd) 5.25 11/15/22 5,259,250 58,940,175 North Carolina (1.4%) 4,500 Charlotte, Water & Sewer Ser 2001 5.125 06/01/26 4,637,745 North Dakota (0.8%) 2,750 Ward County, Trinity Ser 2006 5.125 07/01/29 2,537,728 Ohio (3.3%) 5,370 Cuyahoga County, Cleveland Clinic Ser 2003 A 6.00 01/01/32 5,599,138 3,000 Lorain County, Catholic Healthcare Partners Ser 2001 A 5.625 10/01/17 3,157,140 2,000 Ohio State University, General Receipts Ser 2002 A 5.125 12/01/31 2,039,580 10,795,858 Oklahoma (0.4%) 1,500 Oklahoma Development Finance Authority,
Great Plains Medical Center Ser 2007 5.125 12/01/36 1,308,660 Pennsylvania (4.4%) 4,000 Allegheny County Redevelopment Authority,
West Penn Allegheny Health Ser 2007 A (b) 5.375 11/15/40 3,321,179 10,000 Pennsylvania, First Ser 2003 (MBIA Insd) (b) 5.00 01/01/13 (a) 10,812,850 14,134,029 South Carolina (4.9%) 3,000 Charleston Educational Excellence Financing Corporation,
Charleston County School District Ser 2005 5.25 12/01/29 3,056,220 70 Lexington County Health Services District, Lexmed Inc,
Ser 2007 A 5.00 11/01/16 73,281 5,000 South Carolina Public Service Authority, Refg Ser 2002 D
(FSA Insd) 5.00 01/01/20 5,234,850 7,000 South Carolina Public Service Authority, Refg Ser 2003 A
(AMBAC Insd) 5.00 01/01/22 7,247,520 345 Richland County, Environmental Improvement, International Paper
Company Ser 2007 A 4.60 09/01/12 341,312 15,953,183

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE Tennessee (3.0%) $ 2,000 Sullivan County Health Educational & Housing Facilities Board,
Wellmont Health Ser 2006 C 5.25 % 09/01/36 $ 1,796,640 8,000 Tennessee Energy Acquisition Corporation Ser 2006 A (b) 5.25 09/01/19 7,990,640 9,787,280 Texas (20.6%) 2,000 Alliance Airport Authority, Federal Express Corp Refg Ser 2006 (AMT) 4.85 04/01/21 1,804,340 10,000 Austin, Water & Wastewater Refg Ser 2001 A & B (FSA Insd) (b) 5.125 05/15/27 10,138,440 3,000 Brazos River Authority, TXU Electric Co Ser 1999 C (AMT) 7.70 03/01/32 2,933,970 6,000 Houston, Airport Sub Lien Ser 2000 A (AMT) (FSA Insd) 5.875 07/01/17 6,207,780 5,000 Houston, Airport Sub Lien Ser 2000 A (AMT) (FSA Insd) 5.625 07/01/30 5,040,650 15,000 Houston, Combined Utility First Lien Refg 2004 Ser A (FGIC Insd) 5.25 05/15/23 15,350,100 2,375 Houston Independent School District Ser 2008 (PSF) 5.00 02/15/26 2,463,777 1,600 Humble Independent School District Ser 2008 A 5.00 02/15/25 1,666,544 2,350 Northside Independent School District,
Bldg & Refg Ser 2001 (PSF) 5.00 02/15/26 2,383,417 8,600 North Texas Tollway Authority Refg First Tier Ser 2008 D 0.00 01/01/28 3,145,106 13,960 San Antonio, Water & Refg Ser 2001 (FGIC Insd) 5.00 05/15/26 14,010,396 2,000 Tarrant County Cultural Educational Facilities Finance Corp,
Air Force Village II Inc Ser 2007 5.125 05/15/37 1,790,860 66,935,380 Vermont (0.6%) 2,500 Vermont Economic Development Authority,
Wake Robin Corp Ser 2006 A 5.375 05/01/36 2,074,150 Virginia (1.4%) 2,000 Fairfax County Economic Development Authority,
Goodwin House Inc Ser 2007 5.125 10/01/42 1,726,500 1,450 Henrico County Economic Development Authority, Residential
Care Facility, Westminster Canterbury-Management Corp
Ser 2006 5.00 10/01/27 1,349,355 1,750 Henrico County Economic Development Authority, Residential
Care Facility, Westminster Canterbury-Management Corp
Ser 2006 5.00 10/01/35 1,545,793 4,621,648

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

PRINCIPAL
AMOUNT IN
THOUSANDS COUPON
RATE MATURITY
DATE VALUE Washington (6.0%) $ 7,000 Energy Northwest, Columbia Refg Ser 2001 C (MBIA Insd) 5.75 % 07/01/18 $ 7,528,360 5,000 Grant County Public Utility District #2, Electric
Refg Ser 2001 H (FSA Insd) 5.375 01/01/18 5,254,850 4,010 Port of Seattle, Passenger Facility Ser 1998 A (MBIA Insd) (b) 5.00 12/01/23 4,044,560 2,500 Spokane School District #81 Ser 2005 (MBIA Insd) 0.00 (e) 06/01/23 2,492,675 19,320,445 Total Tax-Exempt Municipal Bonds (Cost $568,886,646) 567,536,654

NUMBER OF
SHARES (000) Short-Term Investment (f) (5.8%) Investment Company 18,752 Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio –
Institutional Class (Cost $18,752,401) 18,752,401 Total Investments ( Cost $587,639,047) 586,289,055

PRINCIPAL
AMOUNT IN
THOUSANDS Floating Rate Note and Dealer Trust Obligations Related to Securities Held (−19.1%) $ (61,880 ) Notes with interest rates ranging from 2.45% to 3.35% at April 30, 2008 and contractual maturities of collateral ranging from 01/01/13 to 08/15/42 (See Note 1D) (g)
(Cost $(61,880,000)) (61,880,000 ) Total Net Investments (Cost $525,759,047) (h) (i) 161.7 % 524,409,055 Other Assets in Excess of Liabilities 2.5 8,019,581 Preferred Shares of Beneficial Interest (64.2 ) (208,088,309 ) Net Assets Applicable to Common Shareholders 100.0 % $ 324,340,327

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

Note: The categories of investments are shown as a percentage of net assets applicable to common shareholders. AMT Alternative Minimum Tax. COPs Certificates of Participation. PSF Texas Permanent School Fund Guarantee Program. (a) Prerefunded to call date shown. (b) Underlying security related to inverse floaters entered into by the Trust. (c) A portion of this security has been physically segregated in connection with open futures and swap contracts in the amount of $1,176,100. (d) Resale is restricted to qualified institutional investors. (e) Security is a ‘‘Step-up’’ bond where the coupon increases on a predetermined future date. (f) See Note 3 to the financial statements regarding investments in Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class. (g) Floating rate note obligation related to securities held. The interest rates shown reflect the rates in effect at April 30, 2008. (h) Securities have been designated as collateral in an amount equal to $121,774,177 in connection with open futures and swap contracts. (i) The aggregate cost for federal income tax purposes approximates the aggregate cost for book purposes. The aggregate gross unrealized appreciation is $12,480,163 and the aggregate gross unrealized depreciation is $13,830,155, resulting in net unrealized depreciation of $1,349,992. Bond Insurance: AMBAC AMBAC Assurance Corporation. FGIC Financial Guaranty Insurance Company. FSA Financial Security Assurance Inc. MBIA Municipal Bond Investors Assurance Corporation. XLCA XL Capital Assurance Inc.

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Portfolio of Investments April 30, 2008 (unaudited) continued

Futures Contracts Open at April 30, 2008:

NUMBER OF
CONTRACTS LONG/SHORT DESCRIPTION, DELIVERY
MONTH, AND YEAR UNDERLYING FACE
AMOUNT AT VALUE UNREALIZED
APPRECIATION
(DEPRECIATION) 325 Long U.S. Treasury Notes 10 Year $37,639,063 $ (393,108 ) June 2008 30 Short U.S. Treasury Notes 2 Year (6,380,625) 38,901 June 2008 165 Short U.S. Treasury Notes 5 Year (18,477,423) 276,219 June 2008 294 Short U.S. Treasury Bond 20 Year (34,365,845) 216,445 June 2008 468 Short Swap Futures 10 Year (52,796,250) (220,358 ) June 2008 Net Unrealized Depreciation $ (81,901 )

Interest Rate Swap Contracts Open at April 30, 2008:

COUNTERPARTY NOTIONAL
AMOUNT
(000) PAYMENTS
RECEIVED BY TRUST PAYMENTS
MADE BY TRUST TERMINATION
DATE UNREALIZED
APPRECIATION
(DEPRECIATION) JPMorgan Chase Bank N.A. $22,080 Fixed Rate 5.385% Floating Rate 0.00%@ February 14, 2018 $ 251,050 Bank of America N.A. 20,815 Fixed Rate 5.58 Floating Rate 0.00@ February 28, 2018 380,082 Merrill Lynch & Co. 7,575 Fixed Rate 5.00 Floating Rate 0.00@ April 15, 2018 (27,194 ) Bank of America N.A. 6,160 Fixed Rate 5.070 Floating Rate 0.00@ April 14, 2018 (6,468 ) Bank of America N.A. 5,675 Fixed Rate 4.982 Floating Rate 0.00@ April 15, 2018 (23,949 ) JPMorgan Chase Bank N.A. 28,120 Floating Rate 0.00@ Fixed Rate 5.831 February 14, 2023 (307,070 ) Bank of America N.A. 26,605 Floating Rate 0.00@ Fixed Rate 5.99 February 28, 2023 (407,855 ) Merrill Lynch & Co. 9,760 Floating Rate 0.00@ Fixed Rate 5.395 April 15, 2023 13,957 Bank of America N.A. 7,885 Floating Rate 0.00@ Fixed Rate 5.47 April 14, 2023 (5,204 ) Bank of America N.A. 6,950 Floating Rate 0.00@ Fixed Rate 5.38 April 15, 2023 12,857 Net Unrealized Depreciation $ (119,794 )

@ Floating rate represents USD-3 months LIBOR.

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Financial Statements

Statement of Assets and Liabilities

April 30, 2008 (unaudited)

Assets: Investments in securities, at value (cost $568,886,646) $567,536,654 Investment in affiliate, at value (cost $18,752,401) 18,752,401 Unrealized appreciation on open swap contracts 657,946 Receivable for: Interest 8,863,628 Dividends from affiliate 33,773 Prepaid expenses and other assets 47,371 Total Assets 595,891,773 Liabilities: Floating rate note and dealer trust obligations 61,880,000 Unrealized depreciation on open swap contracts 777,740 Payable for: Variation margin 497,392 Investment advisory fee 125,528 Administration fee 38,187 Transfer agent fee 724 Accrued expenses and other payables 143,566 Total Liabilities 63,463,137 Preferred shares of beneficial interest, (at liquidation value) (1,000,000 shares authorized of non-participating $.01 par value, 4,160 shares outstanding) 208,088,309 Net Assets Applicable to Common Shareholders $324,340,327 Composition of Net Assets Applicable to Common Shareholders: Common shares of beneficial interest (unlimited shares authorized of $.01 par value,
23,505,265 shares outstanding) $329,401,143 Net unrealized depreciation (1,551,687) Accumulated undistributed net investment income 803,130 Accumulated net realized loss (4,312,259) Net Assets Applicable to Common Shareholders $324,340,327 Net Asset Value Per Common Share
($324,340,327 divided by 23,505,265 common shares outstanding) $13.80

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Financial Statements continued

Statement of Operations

For the six months ended April 30, 2008 (unaudited)

Net Investment Income: Income Interest $ 14,576,417 Dividends from affiliate 189,406 Total Income 14,765,823 Expenses Interest and residual trust expenses 982,266 Investment advisory fee 727,538 Auction commission fees 259,554 Administration fee 215,567 Custodian fees 29,176 Professional fees 28,522 Shareholder reports and notices 27,424 Auction agent fees 22,478 Registration fees 9,088 Transfer agent fees and expenses 7,763 Trustees’ fees and expenses 6,944 Other 42,563 Total Expenses 2,358,883 Less: expense offset (9,133 ) Less: rebate from Morgan Stanley affiliated cash sweep (Note 4) (7,385 ) Net Expenses 2,342,365 Net Investment Income 12,423,458 Realized and Unrealized Gain (Loss): Realized Gain (Loss) on: Investments 410,286 Futures contracts (4,402,838 ) Net Realized Loss (3,992,552 ) Change in Unrealized Appreciation/Depreciation on: Investments (13,522,050 ) Futures contracts 144,826 Swap contracts (119,794 ) Net Change in Unrealized Appreciation/Depreciation (13,497,018 ) Net Loss (17,489,570 ) Dividends to preferred shareholders from net investment income (3,790,444 ) Net Decrease $ (8,856,556 )

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Financial Statements continued

Statements of Changes in Net Assets

FOR THE SIX
MONTHS ENDED
APRIL 30, 2008 FOR THE YEAR
ENDED
OCTOBER 31, 2007 (unaudited) Increase (Decrease) in Net Assets: Operations: Net investment income $ 12,423,458 $ 24,713,533 Net realized loss (3,992,552 ) (526,597 ) Net change in unrealized appreciation/depreciation (13,497,018 ) (18,240,540 ) Dividends to preferred shareholders from net investment income (3,790,444 ) (8,061,784 ) Net Decrease (8,856,556 ) (2,115,388 ) Dividends and Distributions to Commion Shareholders from: Net investment income (8,146,999 ) (17,236,605 ) Net realized gain — (3,902,944 ) Total Dividends and Distributions (8,146,999 ) (21,139,549 ) Decrease from transactions in common shares of beneficial interest (3,609,174 ) (6,039,226 ) Net Decrease (20,612,729 ) (29,294,163 ) Net Assets Applicable to Common Shareholders: Beginning of period 344,953,056 374,247,219 End of Period (Including accumulated undistributed net investment income of $803,130 and $317,115, respectively) $ 324,340,327 $ 344,953,056

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited)

1. Organization and Accounting Policies

Morgan Stanley Quality Municipal Income Trust (the ‘‘Trust’’) is registered under the Investment Company Act of 1940, as amended, as a diversified, closed-end management investment company. The Trust’s investment objective is to provide current income which is exempt from federal income tax. The Trust was organized as a Massachusetts business trust on March 12, 1992 and commenced operations on September 29, 1992.

The following is a summary of significant accounting policies:

A. Valuation of Investments — (1) portfolio securities are valued by an outside independent pricing service approved by the Trustees. The pricing service uses both a computerized grid matrix of tax-exempt securities and evaluations by its staff, in each case based on information concerning market transactions and quotations from dealers which reflect the mean between the last reported bid and asked price. The portfolio securities are thus valued by reference to a combination of transactions and quotations for the same or other securities believed to be comparable in quality, coupon, maturity, type of issue, call provisions, trading characteristics and other features deemed to be relevant. The Trustees believe that timely and reliable market quotations are generally not readily available for purposes of valuing tax-exempt securities and that the valuations supplied by the pricing service are more likely to approximate the fair value of such securities; (2) futures are valued at the latest sale price on the commodities exchange on which they trade unless it is determined that such price does not reflect their market value, in which case they will be valued at their fair value as determined in good faith under procedures established by and under the supervision of the Trustees; (3) interest rate swaps are marked-to-market daily based upon quotations from market makers; (4) investments in open-end mutual funds, including the Morgan Stanley Institutional Liquidity Funds, are valued at the net asset value as of the close of each business day; and (5) short-term debt securities having a maturity date of more than sixty days at time of purchase are valued on a mark-to-market basis until sixty days prior to maturity and thereafter at amortized cost based on their value on the 61st day. Short-term debt securities having a maturity date of sixty days or less at the time of purchase are valued at amortized cost.

B. Accounting for Investments — Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities and are included in interest income. Interest income is accrued daily.

C. Futures Contracts — A futures contract is an agreement between two parties to buy and sell financial instruments or contracts based on financial indices at a set price on a future date. Upon entering into such a contract, the Trust is required to pledge to the broker cash, U.S. Government securities or other liquid portfolio securities equal to the minimum initial margin requirements of the applicable futures exchange. Pursuant to the contract, the Trust agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in the value of the contract. Such receipts or payments known as variation margin are

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

recorded by the Trust as unrealized gains and losses. Upon closing of the contract, the Trust realizes a gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed.

D. Floating Rate Note and Dealer Trusts Obligations Related to Securities Held — The Trust enters into transactions in which it transfers to Dealer Trusts (‘‘Dealer Trusts’’), fixed rate bonds in exchange for cash and residual interests in the Dealer Trusts’ assets and cash flows, which are in the form of inverse floating rate investments. The Dealer Trusts fund the purchases of the fixed rate bonds by issuing floating rate notes to third parties and allowing the Trust to retain residual interest in the bonds. The Trust enters into shortfall agreements with the Dealer Trusts which commit the Trust to pay the Dealer Trusts, in certain circumstances, the difference between the liquidation value of the fixed rate bonds held by the Dealer Trusts and the liquidations value of the floating rate notes held by third parties, as well as any shortfalls in interest cash flows. The residual interests held by the Trust (inverse floating rate investments) include the right of the Trust (1) to cause the holders of the floating rate notes to tender their notes at par at the next interest rate reset date, and (2) to transfer the municipal bond from the Dealer Trusts to the Trust, thereby collapsing the Dealer Trusts. The Trust accounts for the transfer of bonds to the Dealer Trusts as secured borrowings, with the securities transferred remaining in the Trust’s investment assets, and the related floating rate notes reflected as Trust liabilities under the caption ‘‘floating rate note and dealer trust obligations’’ on the Statement of Assets and Liabilities. The Trust records the interest income from the fixed rate bonds under the caption ‘‘Interest Income’’ and records the expenses related to floating rate obligations and any administrative expenses of the Dealer Trusts under the caption ‘‘Interest and residual trust expenses’’ in the Trust’s statement of Operations. The notes issued by the Dealer Trusts have interest rates that reset weekly and the floating rate note holders have the option to tender their notes to the Dealer Trusts for redemption at par at each reset date. At April 30, 2008, Trust investments with a value of $87,629,135 are held by the Dealer Trusts and serve as collateral for the $61,880,000 in the floating rate note and dealer trusts obligations outstanding at that date. Contractual maturities of the floating rate note obligations and interest rates in effect at April 30, 2008 are presented in the Portfolio of Investments.

E. Interest Rate Swaps — Interest rate swaps involve the exchange of commitments to pay and receive interest based on a notional principal amount. Net periodic interest payments to be received or paid are accrued daily and are recorded as realized gains or losses in the Statement of Operations. The Trust may pay or receive cash to collateralize interest rate swap contracts. This cash collateral is recorded as assets/liabilities on the Trust’s books. Any cash received may be invested in Morgan Stanley Institutional Liquidity Funds.

F. Federal Income Tax Policy — It is the Trust’s policy to comply with the requirements of Subchapter M of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable and non taxable income to its shareholders. Therefore, no provision for federal income taxes is

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

required. The Trust files tax returns with the U.S. Internal Revenue Service, New York State and New York City. The Trust adopted the provisions of the Financial Accounting Standards Board (‘‘FASB’’) Interpretation No. 48 (‘‘FIN 48’’) Accounting for Uncertainty in Income Taxes , on April 29, 2008. FIN 48 sets forth a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return. The implementation of FIN 48 did not result in any unrecognized tax benefits in the accompanying financial statements. If applicable, the Trust recognizes the interest accrued related to unrecognized tax benefits in the interest expense and penalties in other expenses in the Statement of Operations. Each of the tax years in the four year period ended April 30, 2008, remains subject to examination by taxing authorities.

G. Dividends and Distributions to Shareholders — Dividends and distributions to shareholders are recorded on the ex-dividend date.

H. Use of Estimates — The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates.

2. Investment Advisory/Administration Agreements

Pursuant to an Investment Advisory Agreement with Morgan Stanley Investment Advisors Inc. (the ‘‘Investment Adviser’’), the Trust pays an advisory fee, calculated weekly and payable monthly, by applying the annual rate of 0.27% to the Trust’s average weekly net assets including preferred shares.

Pursuant to an Administration Agreement with Morgan Stanley Services Company Inc. (the ‘‘Administrator’’), an affiliate of the Investment Adviser, the Trust pays an administration fee, calculated weekly and payable monthly, by applying the annual rate of 0.08% to the Trust’s average weekly net assets including preferred shares.

Under an agreement between the Administrator and State Street Bank and Trust Company (‘‘State Street’’), State Street provides certain administrative services to the Trust. For such services, the Administrator pays State Street a portion of the fee the Administrator receives from the Trust.

3. Security Transactions and Transactions with Affiliates

The Trust invests in Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class, an open-end management investment company managed by the Investment Adviser. Investment advisory fees paid by the Trust are reduced by an amount equal to the advisory and administrative service fees paid by Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class with respect to assets invested by the Trust in Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class. For the six months ended April 30, 2008, advisory fees paid were reduced by $7,385 relating to the Trust’s investment in Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class. Income distributions earned by the Trust are recorded as dividends from affiliate in the Statement of Operations and

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

totaled $189,406 for the six months ended April 30, 2008. During the six months ended April 30, 2008, cost of purchases and sales of Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class aggregated $50,663,071 and $43,135,058, respectively.

The cost of purchases and proceeds from sales of portfolio securities, excluding short-term investments, for the six months ended April 30, 2008 aggregated $11,392,241 and $25,609,276 respectively.

The Trust has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Trust who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. The Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Aggregate pension costs for the six months ended April 30, 2008, included in Trustees’ fees and expenses in the Statement of Operations amounted to $2,417. At April 30, 2008, the Trust had an accrued pension liability of $54,025 which is included in accrued expenses in the Statement of Assets and Liabilities.

The Trust has an unfunded Deferred Compensation Plan (the ‘‘Compensation Plan’’) which allows each independent Trustee to defer payment of all, or a portion, of the fees he or she receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Trust.

4. Preferred Shares of Beneficial Interest

The Trust is authorized to issue up to 1,000,000 non-participating preferred shares of beneficial interest having a par value of $.01 per share, in one or more series, with rights as determined by the Trustees, without approval of the common shareholders. The Trust has issued Series 1 through 5 Auction Rate Preferred Shares (‘‘preferred shares’’) which have a liquidation value of $50,000 per share plus the redemption premium, if any, plus accumulated but unpaid dividends, whether or not declared, thereon to the date of distribution. The Trust may redeem such shares, in whole or in part, at the original purchase price of $50,000 per share plus accumulated but unpaid dividends, whether or not declared, thereon to the date of redemption.

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

Dividends, which are cumulative, are reset through auction procedures.

SERIES SHARES+ AMOUNT IN THOUSANDS+ RATE+ RESET DATE RANGE OF DIVIDEND RATES++ 1 1,120 $ 56,000 3.777 % 05/07/2008 2.833% – 4.70% 2 400 20,000 3.823 05/08/2008 2.581 – 4.356 3 1,120 56,000 3.823 05/08/2008 2.772 – 4.60 4 1,120 56,000 3.823 05/08/2008 2.772 – 4.60 5 400 20,000 3.594 05/09/2008 2.866 – 4.508

+ As of April 30, 2008. ++ For the six months ended April 30, 2008.

Subsequent to April 30, 2008 and up through June 6, 2008, the Trust paid dividends to each of the Series 1 through 5 at rates ranging from 2.483% to 3.945% in the aggregate amount of $727,284.

The Trust is subject to certain restrictions relating to the preferred shares. Failure to comply with these restrictions could preclude the Trust from declaring any distributions to common shareholders or purchasing common shares and/or could trigger the mandatory redemption of preferred shares at liquidation value.

The preferred shares, which are entitled to one vote per share, generally vote with the common shares but vote separately as a class to elect two Trustees and on any matters affecting the rights of the preferred shares.

5. Common Shares of Beneficial Interest

Transactions in common shares of beneficial interest were as follows:

SHARES PAR
VALUE CAPITAL
PAID IN
EXCESS OF
PAR VALUE Balance, October 31, 2006 24,222,398 $ 242,224 $ 338,807,319 Treasury shares purchased and retired (weighted average discount 6.65%)+++ (435,555 ) (4,356 ) (6,034,870 ) Balance, October 31, 2007 23,786,843 237,868 332,772,449 Treasury shares purchased and retired (weighted average discount 10.49%)+++ (281,578 ) (2,816 ) (3,606,358 ) Balance, April 30, 2008 23,505,265 $ 235,052 $ 329,166,091

+++ The Trustees have voted to retire the shares purchased.

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

6. Dividends to Common Shareholders

On April 8, 2008, the Trust declared the following dividends from net investment income:

AMOUNT PER SHARE RECORD DATE PAYABLE DATE $0.0575 May 23, 2008 May 30, 2008 $0.0575 June 20, 2008 June 27, 2008

7. Expense Offset

The expense offset represents a reduction of the fees and expenses for interest earned on cash balances maintained by the Trust with the transfer agent and custodian.

8. Purposes of and Risks Relating to Certain Financial Instruments

The Trust may invest a portion of its assets in inverse floating rate instruments, either through outright purchases of inverse floating rate securities or through the transfer of bonds to a Dealer Trust in exchange for cash and residual interests in the Dealer Trust. These investments are typically used by the Trust in seeking to enhance the yield of the portfolio. These instruments typically involve greater risks than a fixed rate municipal bond. In particular, these instruments are acquired through leverage or may have leverage embedded in them and therefore involve many of the risks associated with leverage. Leverage is a speculative technique that may expose the Trust to greater risk and increased costs. Leverage may cause the Trust’s net asset value to be more volatile than if it had not been leveraged because leverage tends to magnify the effect of any increases or decreases in the value of the Trust’s portfolio securities. The use of leverage may also cause the Trust to liquidate portfolio positions when it may not be advantageous to do so in order to satisfy its obligations with respect to inverse floating rate instruments.

To hedge against adverse interest rate changes, the Trust may invest in financial futures contracts or municipal bond index futures contracts (‘‘futures contracts’’).

These futures contracts involve elements of market risk in excess of the amount reflected in the Statement of Assets and Liabilities. The Trust bears the risk of an unfavorable change in the value of the underlying securities. Risks may also arise upon entering into these contracts from the potential inability of the counterparties to meet the terms of their contracts.

The Trust may enter into interest rate swaps and may purchase or sell interest rate caps, floors and collars. The Trust expects to enter into these transactions primarily to manage interest rate risk, hedge portfolio positions and preserve a return or spread on a particular investment or portion of its portfolio. The Trust may also enter into these transactions to protect against any increase in the price of securities the Trust anticipates purchasing at a later date. Interest rate swap transactions are subject to market risk, risk of default by the other party to the transaction, risk of imperfect correlation and manager risk. Such risks may exceed the related amounts shown in the Statements of Assets and Liabilities.

Morgan Stanley Quality Municipal Income Trust

Notes to Financial Statements April 30, 2008 (unaudited) continued

9. Federal Income Tax Status

The amount of dividends and distributions from net investment income and net realized capital gains are determined in accordance with federal income tax regulations which may differ from generally accepted accounting principles. These ‘‘book/tax’’ differences are either considered temporary or permanent in nature. To the extent these differences are permanent in nature, such amounts are reclassified within the capital accounts based on their federal tax-basis treatment; temporary differences do not require reclassification. Dividends and distributions which exceed net investment income and net realized capital gains for tax purposes are reported as distributions of paid-in-capital.

As of October 31, 2007, the Trust had temporary book/tax differences primarily attributable to book amortization of discounts on debt securities, mark-to- market of open futures contracts and dividend payable.

10. Accounting Pronouncements

On March 19, 2008, FASB released Statement of Financial Accounting Standards No. 161, ‘‘Disclosures about Derivative Instruments and Hedging Activities’’ (‘‘FAS 161’’). FAS 161 requires qualitative disclosures about objectives and strategies for using derivatives, quantitative disclosures about fair value amounts of and gains and losses on derivative instruments, and disclosures about credit- risk-related contingent features in derivative agreements. The application of FAS 161 is required for fiscal years beginning after November 15, 2008 and interim periods within those fiscal years. At this time, management is evaluating the implications of FAS 161 and its impact on the financial statements has not been determined.

In September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the impact the adoption of SFAS 157 will have on the Trust’s financial statement disclosures.

Morgan Stanley Quality Municipal Income Trust

Financial Highlights

Selected ratios and per share data for a common share of beneficial interest outstanding throughout each period:

FOR THE SIX
MONTHS ENDED
APRIL 30, 2008 FOR THE YEAR ENDED OCTOBER 31, 2007 2006 2005 2004 2003 (unaudited) Selected Per Share Data: Net asset value, beginning of period $ 14.50 $ 15.45 $ 15.38 $ 15.42 $ 15.54 $ 15.60 Income (loss) from investment operations: Net investment income(1) 0.53 1.03 1.01 1.00 0.97 1.01 Net realized and unrealized gain (loss) (0.74 ) (0.78 ) 0.38 (0.17 ) 0.18 0.24 Common share equivalent of dividends paid to preferred shareholders(1) (0.16 ) (0.34 ) (0.27 ) (0.16 ) (0.15 ) (0.16 ) Total income (loss) from investment operations (0.37 ) (0.09 ) 1.12 0.67 1.00 1.09 Less dividends and distributions from: Net investment income (0.35 ) (0.72 ) (0.83 ) (0.81 ) (0.88 ) (0.90 ) Net realized gain —
(0.16 ) (0.26 ) —
(0.30 ) (0.30 ) Total dividends and distributions (0.35 ) (0.88 ) (1.09 ) (0.81 ) (1.18 ) (1.20 ) Anti-dilutive effect of acquiring treasury shares(1) 0.02 0.02 0.04 0.10 0.06 0.05 Net asset value, end of period $ 13.80 $ 14.50 $ 15.45 $ 15.38 $ 15.42 $ 15.54 Market value, end of period $ 12.62 $ 12.90 $ 14.39 $ 13.71 $ 13.83 $ 14.55 Total Return(2) 0.55 % (5) (4.59 )% 13.20 % 5.14 % 3.32 % 13.82 % Ratios to Average Net Assets of Common
Shareholders: Total expenses (before expense offset) 1.41 % (3)(4)(6) 1.41 % 1.03 % 0.88 % 0.89 % 0.83 % (4) Total expenses (before expense offset, exclusive of interest and residual trust expenses) 0.82 % (3)(4)(6) 0.81 % 0.84 % 0.88 % 0.89 % 0.83 % (4) Net investment income before preferred stock dividends 7.48 % (3)(6) 6.90 % 6.66 % 6.41 % 6.48 % 6.58 % Preferred stock dividends 2.28 % (6) 2.25 % 1.78 % 1.01 % 1.01 % 1.05 % Net investment income available to common shareholders 5.20 % (3)(6) 4.65 % 4.88 % 5.40 % 5.47 % 5.53 % Supplemental Data: Net assets applicable to common shareholders, end of period, in thousands $324,340 $344,953 $374,247 $385,494 $407,553 $430,353 Asset coverage on preferred shares at end of period 256 % 266 % 280 % 285 % 296 % 307 % Portfolio turnover rate 2 % (5) 16 % 14 % 14 % 16 % 41 %

(1) The per share amounts were computed using an average number of common shares outstanding during the period. (2) Total return is based upon the current market value on last day of each period reported. Dividends and distributions are assumed to be reinvested at the prices obtained under the Trust’s dividend reinvestment plan. Total return does not reflect brokerage commissions. (3) Reflects waivers of certain Trust expenses in connection with the investments in Morgan Stanley Institutional Liquidity Tax-Exempt Portfolio – Institutional Class during the period. As a result of such rebate, the expenses as a percentage of its net assets had an effect of less than 0.005% . (4) Does not reflect the effect of expense offset of 0.01%. (5) Not annualized. (6) Annualized.

See Notes to Financial Statements

Morgan Stanley Quality Municipal Income Trust

Revised Investment Policy (unaudited)

While the Trust’s policy is to emphasize investments in municipal obligations with longer-term maturities because generally longer-term obligations, while more susceptible to market fluctuations resulting from changes in interest rates, produce higher yields than short-term obligations, the Trust no longer expects to maintain a specific average weighted maturity of its portfolio. As a result of changes in the fixed-income and municipal marketplace, the Trust’s average portfolio maturity will vary depending upon market conditions and other factors.

Morgan Stanley Quality Municipal Income Trust

Morgan Stanley Advisor Closed End Funds
An Important Notice Concerning Our U.S. Privacy Policy (unaudited)

We are required by federal law to provide you with a copy of our Privacy Policy annually.

The following Policy applies to current and former individual investors in Morgan Stanley Advisor closed end funds. This Policy is not applicable to partnerships, corporations, trusts or other non-individual clients or account holders. Please note that we may amend this Policy at any time, and will inform you of any changes to this Policy as required by law.

We Respect Your Privacy

We appreciate that you have provided us with your personal financial information. We strive to maintain the privacy of such information while we help you achieve your financial objectives. This Policy describes what non-public personal information we collect about you, why we collect it, and when we may share it with others. We hope this Policy will help you understand how we collect and share non-public personal information that we gather about you. Throughout this Policy, we refer to the non-public information that personally identifies you or your accounts as ‘‘personal information.’’

1. What Personal Information Do We Collect About You?

To serve you better and manage our business, it is important that we collect and maintain accurate information about you. We may obtain this information from applications and other forms you submit to us, from your dealings with us, from consumer reporting agencies, from our Web sites and from third parties and other sources.

For example:

▪ We may collect information such as your name, address, e-mail address, telephone/fax numbers, assets, income and investment objectives through applications and other forms you submit to us.

▪ We may obtain information about account balances, your use of account(s) and the types of products and services you prefer to receive from us through your dealings and transactions with us and other sources.

▪ We may obtain information about your creditworthiness and credit history from consumer reporting agencies.

▪ We may collect background information from and through third-party vendors to verify representations you have made and to comply with various regulatory requirements.

▪ If you interact with us through our public and private Web sites, we may collect information that you provide directly through online communications (such as an e-mail address). We may also collect information about your Internet service provider, your domain name, your computer’s operating system and Web browser, your use of our Web sites and your product and service preferences, through the use of

Morgan Stanley Quality Municipal Income Trust

Morgan Stanley Advisor Closed End Funds
An Important Notice Concerning Our U.S. Privacy Policy (unaudited) continued

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2. When Do We Disclose Personal Information We Collect About You?

To provide you with the products and services you request, to serve you better and to manage our business, we may disclose personal information we collect about you to our affiliated companies and to non-affiliated third parties as required or permitted by law.

A. Information We Disclose to Our Affiliated Companies. We do not disclose personal information that we collect about you to our affiliated companies except to enable them to provide services on our behalf or as otherwise required or permitted by law.

B. Information We Disclose to Third Parties. We do not disclose personal information that we collect about you to non-affiliated third parties except to enable them to provide services on our behalf, to perform joint marketing agreements with other financial institutions, or as otherwise required or permitted by law. For example, some instances where we may disclose information about you to non-affiliated third parties include: for servicing and processing transactions, to offer our own products and services, to protect against fraud, for institutional risk control, to respond to judicial process or to perform services on our behalf. When we share personal information with these companies, they are required to limit their use of personal information to the particular purpose for which it was shared and they are not allowed to share personal information with others except to fulfill that limited purpose.

3. How Do We Protect the Security and Confidentiality of Personal Information We Collect About You?

We maintain physical, electronic and procedural security measures to help safeguard the personal information we collect about you. We have internal policies governing the proper handling of client information. Third parties that provide support or marketing services on our behalf may also receive personal information, and we require them to adhere to confidentiality standards with respect to such information.

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Trustees

Frank L. Bowman
Michael Bozic
Kathleen A. Dennis
James F. Higgins
Dr. Manuel H. Johnson
Joseph J. Kearns
Michael F. Klein
Michael E. Nugent
W. Allen Reed
Fergus Reid

Officers

Michael E. Nugent
Chairperson of the Board

Ronald E. Robison
President and Principal Executive Officer

Kevin Klingert
Vice President

Dennis F. Shea
Vice President

Amy R. Doberman
Vice President

Carsten Otto
Chief Compliance Officer

Stefanie V. Chang Yu
Vice President

Francis J. Smith
Treasurer and Chief Financial Officer

Mary E. Mullin
Secretary

Transfer Agent

Computershare Trust Company, N.A.
P.O. Box 43078
Providence, RI 02940-3078

Independent Registered Public Accounting Firm

Deloitte & Touche LLP
Two World Financial Center
New York, New York 10281

Legal Counsel

Clifford Chance US LLP
31 West 52nd Street
New York, New York 10019

Counsel to the Independent Trustees

Kramer Levin Naftalis & Frankel LLP
1177 Avenue of the Americas
New York, New York 10036

Investment Adviser

Morgan Stanley Investment Advisors Inc.
522 Fifth Avenue
New York, New York 10036

The financial statements included herein have been taken from the records of the Trust without examination by the independent auditors and accordingly they do not express an opinion thereon.

IQISAN
IU08-03264P-Y04/08

MORGAN STANLEY FUNDS

Morgan Stanley
Quality Municipal
Income Trust

Semiannual Report
April 30, 2008

Item 2. Code of Ethics.

Not applicable for semiannual reports.

Item 3. Audit Committee Financial Expert.

Not applicable for semiannual reports.

Item 4. Principal Accountant Fees and Services

Not applicable for semiannual reports.

Item 5. Audit Committee of Listed Registrants.

Not applicable for semiannual reports.

Item 6.

Refer to Item 1.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable for semiannual reports.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Applicable only to reports covering periods ending on or after December 31, 2005.

Item 9. Closed-End Fund Repurchases

REGISTRANT PURCHASE OF EQUITY SECURITIES

Period

(a) Total Number of Shares (or Units) Purchased

(b) Average Price Paid per Share (or Unit)

(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs

(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs

November 1, – November 30, 2007

53,600

12.4974

N/A

December 1, – December 31, 2007

95,264

12.4681

N/A

January 1, – January 31, 2008

88,014

13.2313

N/A

February 1 – February 29, 2008

44,700

13.1367

N/A

March 1 – March 31, 2008

N/A

April 1, – April 30, 2008

N/A

Total

281,578

12.8334

N/A

Item 10. Submission of Matters to a Vote of Security Holders

Not applicable.

Item 11. Controls and Procedures

(a) The Trust’s/Fund’s principal executive officer and principal financial officer have concluded that the Trust’s/Fund’s disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the Trust/Fund in this Form N-CSR

was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, based upon such officers’ evaluation of these controls and procedures as of a date within 90 days of the filing date of the report.

(b) There were no changes in the registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Exhibits

(a) Code of Ethics – Not applicable for semiannual reports.

(b) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto as part of EX-99.CERT.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Morgan Stanley Quality Municipal Income Trust

/s/ Ronald E. Robison

Ronald E. Robison
Principal Executive Officer
June 19, 2008

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

/s/ Ronald E. Robison

Ronald E. Robison
Principal Executive Officer
June 19, 2008

/s/ Francis Smith

Francis Smith
Principal Financial Officer
June 19, 2008

EXHIBIT 12 B1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

CERTIFICATIONS

I, Ronald E. Robison, certify that:

I have reviewed this report on Form N-CSR of Morgan Stanley Quality Municipal Income Trust;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

The registrant’s other certifying officer(s) and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.

Date: June 19, 2008,

/s/ Ronald E. Robison

Ronald E. Robison
Principal Executive Officer

EXHIBIT 12 B2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

CERTIFICATIONS

I, Francis Smith, certify that:

I have reviewed this report on Form N-CSR of Morgan Stanley Quality Municipal Income Trust;

any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.

Date: June 19, 2008

/s/ Francis Smith

Francis Smith
Principal Financial Officer

SECTION 906 CERTIFICATION

Certification Pursuant to 18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley Quality Municipal Income Trust

In connection with the Report on Form N-CSR (the “Report”) of the above-named issuer for the period ended April 30, 2008 that is accompanied by this certification, the undersigned hereby certifies that:

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Issuer.

Date: June 19, 2008

/s/ Ronald E. Robison

Ronald E. Robison
Principal Executive Officer

A signed original of this written statement required by Section 906 has been provided to Morgan Stanley Quality Municipal Income Trust and will be retained by Morgan Stanley Quality Municipal Income Trust and furnished to the Securities and Exchange Commission or its staff upon request.

SECTION 906 CERTIFICATION

Certification Pursuant to 18 U.S.C. Section 1350,

As Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley Quality Municipal Income Trust

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Issuer.

Date: June 19, 2008

/s/ Francis Smith

Francis Smith
Principal Financial Officer