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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 Dry7kgL7QzdXPOT7JbWHydFmxL2IKzfhj1gB1SvD+0QE11R5lh6vtuioXtvnIrUj
 BI7pi3+ryd0B5A7pCA2POA==

<SEC-DOCUMENT>0001225208-06-003674.txt : 20060724
<SEC-HEADER>0001225208-06-003674.hdr.sgml : 20060724
<ACCEPTANCE-DATETIME>20060724163529
ACCESSION NUMBER:		0001225208-06-003674
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060723
FILED AS OF DATE:		20060724
DATE AS OF CHANGE:		20060724

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CIGNA CORP
		CENTRAL INDEX KEY:			0000701221
		STANDARD INDUSTRIAL CLASSIFICATION:	HOSPITAL & MEDICAL SERVICE PLANS [6324]
		IRS NUMBER:				061059331
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE LIBERTY PLACE
		STREET 2:		1601 CHESTNUT STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19192-1550
		BUSINESS PHONE:		2157611000

	MAIL ADDRESS:	
		STREET 1:		TWO LIBERTY PLACE 48TH FLOOR
		STREET 2:		1601 CHESTNUT STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19192

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cordani David
		CENTRAL INDEX KEY:			0001318751

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08323
		FILM NUMBER:		06976864

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		860-226-7482

	MAIL ADDRESS:	
		STREET 1:		900 COTTAGE GROVE ROAD
		STREET 2:		B 217
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06152
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-07-23</periodOfReport>

    <issuer>
        <issuerCik>0000701221</issuerCik>
        <issuerName>CIGNA CORP</issuerName>
        <issuerTradingSymbol>CI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001318751</rptOwnerCik>
            <rptOwnerName>Cordani David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>900 COTTAGE GROVE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HARTFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06152</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Pres. CIGNA HealthCare</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.25 Par Value</value>
            </securityTitle>
            <transactionDate>
                <value>2006-07-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>432</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>102.3</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11214</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $.25 Par Value</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>399.82</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes shares acquired through ongoing participation in CIGNA's 401 (K) Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Carol J. Ward on behalf of</signatureName>
        <signatureDate>2006-07-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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