-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 EnRU7x6a2Y4lPc8z/IPP6ihlPoT5F2rHfFWzhu0z5brtzNYFpkK16S6StsjnrWEr
 YjXnY9dUs/60AueAqfdw5g==

<SEC-DOCUMENT>0001370027-06-000020.txt : 20060801
<SEC-HEADER>0001370027-06-000020.hdr.sgml : 20060801
<ACCEPTANCE-DATETIME>20060801143809
ACCESSION NUMBER:		0001370027-06-000020
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060801
FILED AS OF DATE:		20060801
DATE AS OF CHANGE:		20060801

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MUNICIPAL HIGH INCOME FUND INC
		CENTRAL INDEX KEY:			0000830487
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		CITIGROUP ASSET MANAGEMENT
		STREET 2:		125 BROAD STREET, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10004
		BUSINESS PHONE:		212-291-2556

	MAIL ADDRESS:	
		STREET 1:		CITIGROUP ASSET MANAGEMENT
		STREET 2:		125 BROAD STREET, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10004

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPECIAL OPPORTUNITIES MUNICIPAL FUND INC
		DATE OF NAME CHANGE:	19881025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEGG MASON INC
		CENTRAL INDEX KEY:			0000704051
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05497
		FILM NUMBER:		06993992

	BUSINESS ADDRESS:	
		STREET 1:		100 LIGHT ST
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202-1476
		BUSINESS PHONE:		4105390000

	MAIL ADDRESS:	
		STREET 1:		100 LIGHT ST
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202-1476

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Legg Mason Partners Fund Advisor, LLC
		CENTRAL INDEX KEY:			0001370027
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05497
		FILM NUMBER:		06993993

	BUSINESS ADDRESS:	
		STREET 1:		399 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-559-0900

	MAIL ADDRESS:	
		STREET 1:		399 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2006-08-01</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000830487</issuerCik>
        <issuerName>MUNICIPAL HIGH INCOME FUND INC</issuerName>
        <issuerTradingSymbol>MHF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001370027</rptOwnerCik>
            <rptOwnerName>Legg Mason Partners Fund Advisor, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>399 PARK AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Advisor to the Fund</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000704051</rptOwnerCik>
            <rptOwnerName>LEGG MASON INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>100 LIGHT ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BALTIMORE</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>21202-1476</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Parent of Advisor</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Legg Mason, Inc. is filing for itself and on behalf of its controlled companies other than Legg Mason Partners Fund Advisor, LLC, Western Asset Management and Western Asset Management, Ltd.</remarks>

    <ownerSignature>
        <signatureName>William J. Renahan by Power of Attorney for Mark Fetting of Legg Mason Partners Fund Advisor, LLC</signatureName>
        <signatureDate>2006-08-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>William J. Renahan by Power of Attorney for Mark Fetting of Legg Mason, Inc.</signatureName>
        <signatureDate>2006-08-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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