-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OEcqCCEdvG3l9u6gv3e2YKi8vMgHnbnrcLkH7XMzmsE72Tin58poDkPuMf5k4z/8
 K8YDdMXsdVvwa2chcFpODQ==

<SEC-DOCUMENT>0001157523-03-004104.txt : 20030811
<SEC-HEADER>0001157523-03-004104.hdr.sgml : 20030811
<ACCEPTANCE-DATETIME>20030811203318
ACCESSION NUMBER:		0001157523-03-004104
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030731
FILED AS OF DATE:		20030811

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STEFANIE CHANG YU
		CENTRAL INDEX KEY:			0001258964

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07109
		FILM NUMBER:		03835785

	BUSINESS ADDRESS:	
		STREET 1:		MORGAN STANLEY INVESTENT MANAGEMENT INC
		STREET 2:		1221 AVE OF THE AMERICAS 22ND FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
		BUSINESS PHONE:		2127627007

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MORGAN STANLEY INSURED MUNICIPAL SECURITIES
		CENTRAL INDEX KEY:			0000913345
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O MORGAN STANLEY TRUST
		STREET 2:		HARBORSIDE FINANCIAL CENTER, PLAZA TWO
		CITY:			JERSEY CITY
		STATE:			NJ
		ZIP:			07311
		BUSINESS PHONE:		(212) 869-6397

	MAIL ADDRESS:	
		STREET 1:		C/O MORGAN STANLEY TRUST
		STREET 2:		HARBORSIDE FINANCIAL CENTER, PLAZA TWO
		CITY:			JERSEY CITY
		STATE:			NJ
		ZIP:			07311

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MORGAN STANLEY  INSURED MUNICIPAL SECURITIES
		DATE OF NAME CHANGE:	20011220

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MORGAN STANLEY DEAN WITTER INSURED MUNICIPAL SECURITIES
		DATE OF NAME CHANGE:	19981221

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERCAPITAL INSURED MUNICIPAL SECURITIES TRUST
		DATE OF NAME CHANGE:	19950410
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>a4452361_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>
   <periodOfReport>2003-07-31</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000913345</issuerCik>
        <issuerName>MORGAN STANLEY INSURED MUNICIPAL SECURITIES</issuerName>
        <issuerTradingSymbol>IMS</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001258964</rptOwnerCik>
            <rptOwnerName>STEFANIE CHANG YU</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MORGAN STANLEY INVESTMENT MANAGEMENT INC</rptOwnerStreet1>
            <rptOwnerStreet2>1221 AVE OF THE AMERICAS 22ND FL</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>0</isDirector>
         <isOfficer>1</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
         <officerTitle>Vice President</officerTitle>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeHolding>
      <securityTitle>
         <value>Common Stock</value>
      </securityTitle>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>0</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeHolding>
 </nonDerivativeTable>
   <ownerSignature>
      <signatureName>Mary E. Mullin/Signed under POA</signatureName>
      <signatureDate>2003-08-07</signatureDate>
   </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----