<SEC-DOCUMENT>0001225208-11-014920.txt : 20110520
<SEC-HEADER>0001225208-11-014920.hdr.sgml : 20110520
<ACCEPTANCE-DATETIME>20110520160935
ACCESSION NUMBER:		0001225208-11-014920
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20110513
FILED AS OF DATE:		20110520
DATE AS OF CHANGE:		20110520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Emery Christina
		CENTRAL INDEX KEY:			0001521374

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05531
		FILM NUMBER:		11861716

	MAIL ADDRESS:	
		STREET 1:		1500 MAIN STREET
		STREET 2:		SUITE 2200
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01115

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASSMUTUAL PARTICIPATION INVESTORS
		CENTRAL INDEX KEY:			0000831655
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				043025730
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1500 MAIN STREET
		STREET 2:		SUITE 600
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01115
		BUSINESS PHONE:		4132261000

	MAIL ADDRESS:	
		STREET 1:		1500 MAIN STREET
		STREET 2:		SUITE 600
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MASSMUTUAL CORPORATE INVESTORS II
		DATE OF NAME CHANGE:	19880417
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-05-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000831655</issuerCik>
        <issuerName>MASSMUTUAL PARTICIPATION INVESTORS</issuerName>
        <issuerTradingSymbol>MPV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001521374</rptOwnerCik>
            <rptOwnerName>Emery Christina</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1500 MAIN STREET</rptOwnerStreet1>
            <rptOwnerStreet2>P O BOX 15189</rptOwnerStreet2>
            <rptOwnerCity>SPRINGFIELD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01115</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOther>1</isOther>
            <otherText>Officer of the Adviser</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>No reportable holdings to be disclosed.</remarks>

    <ownerSignature>
        <signatureName>Ann Malloy as Attorney-in-fact</signatureName>
        <signatureDate>2011-05-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>cermerypoa.txt
<TEXT>
SEC Form 3, Form 4 and Form 5 and Application for EDGAR Access
(Form ID) Confirmation of Authority to Sign


Pursuant to Instruction 7 to SEC "Form 3 - Initial Statement of Beneficial
Ownership of Securities", "Form 4--Statement of Changes in Beneficial Ownership"
  and "Form 5 - Annual Statement of Beneficial Ownership of Securities", the
undersigned, being an Officer of Babson Capital Management LLC,  investment
adviser to MassMutual Corporate Investors and MassMutual Participation Investors
  (each, a "Trust"), hereby appoint and designate Ruth Howe, Ann Malloy, Elise
Clark and Melissa LaGrant, each as my true and lawful attorneys in fact with
full power to (a) apply for access to the EDGAR filing system in my name and (b)
  sign for me and file with the Securities and Exchange Commission, the New York
  Stock Exchange and the Trust said SEC Forms 3, 4 and/or 5 with respect to
shares of the Trust purchased or sold by the undersigned or any other change of
beneficial ownership relating to equity or derivative securities of the Trust
required to be reported by the undersigned.

This authorization shall remain in effect until a written revocation is executed
  by the undersigned and filed with the Securities and Exchange Commission.





Date:             05-19-2011
Name:             Christine Emery
Title:            Managing Director of Babson Capital Management LLC



</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
