-----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,
 HH1yhdWtkwJA4nhJJ96X1qzKU2+Nh6KLR5Eh8QXCfI/1nbkqg/aySrURHQxgrSA/
 qLDn9twkaAzW650dv0Ah8A==

<SEC-DOCUMENT>0000230557-06-000033.txt : 20060221
<SEC-HEADER>0000230557-06-000033.hdr.sgml : 20060220
<ACCEPTANCE-DATETIME>20060221140352
ACCESSION NUMBER:		0000230557-06-000033
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060213
FILED AS OF DATE:		20060221
DATE AS OF CHANGE:		20060221

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SELECTIVE INSURANCE GROUP INC
		CENTRAL INDEX KEY:			0000230557
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				222168890
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		40 WANTAGE AVENUE
		CITY:			BRANCHVILLE
		STATE:			NJ
		ZIP:			07890
		BUSINESS PHONE:		2019483000

	MAIL ADDRESS:	
		STREET 1:		40 WANTAGE AVE
		STREET 2:		40 WANTAGE AVE
		CITY:			BRANCHVILLE
		STATE:			NJ
		ZIP:			07890

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SRI CORP
		DATE OF NAME CHANGE:	19860508

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BECKER W MARSTON
		CENTRAL INDEX KEY:			0001054153

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-08641
		FILM NUMBER:		06632428

	BUSINESS ADDRESS:	
		STREET 1:		600 FIFTH AVENUE 24TH FLOOR
		STREET 2:		ORION CAPITAL CORP
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020-2302
		BUSINESS PHONE:		4412942210

	MAIL ADDRESS:	
		STREET 1:		MAXRELTDMAXREHOUSE
		STREET 2:		2FRONTSTREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM11
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>c0001054153d20060221f3s1f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2006-02-13</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000230557</issuerCik>
        <issuerName>SELECTIVE INSURANCE GROUP INC</issuerName>
        <issuerTradingSymbol>SIGI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001054153</rptOwnerCik>
            <rptOwnerName>BECKER W MARSTON</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>40 WANTAGE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BRANCHVILLE</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07890</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>W. Marston Becker</signatureName>
        <signatureDate>2006-02-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
