<SEC-DOCUMENT>0000846800-18-000001-index.html : 20180913
<SEC-HEADER>0000846800-18-000001.hdr.sgml : 20180913

<ACCEPTANCE-DATETIME>20180212154032

<PRIVATE-TO-PUBLIC>

ACCESSION NUMBER:		0000846800-18-000001

CONFORMED SUBMISSION TYPE:	N-CSR

PUBLIC DOCUMENT COUNT:		11

CONFORMED PERIOD OF REPORT:	20171231

FILED AS OF DATE:		20180212

DATE AS OF CHANGE:		20180817

EFFECTIVENESS DATE:		20180212


FILER:


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			DREYFUS STOCK INDEX FUND INC

		CENTRAL INDEX KEY:			0000846800

		IRS NUMBER:				133537664

		STATE OF INCORPORATION:			NY

		FISCAL YEAR END:			1231



	FILING VALUES:

		FORM TYPE:		N-CSR

		SEC ACT:		1940 Act

		SEC FILE NUMBER:	811-05719

		FILM NUMBER:		18596148



	BUSINESS ADDRESS:	

		STREET 1:		THE DREYFUS CORPORATION

		STREET 2:		200 PARK AVENUE

		CITY:			NEW YORK

		STATE:			NY

		ZIP:			10166

		BUSINESS PHONE:		2129226400



	MAIL ADDRESS:	

		STREET 1:		C/O DREYFUS CORP

		STREET 2:		200 PARK AVENUE, 7TH FLOOR

		CITY:			NEW YORK

		STATE:			NY

		ZIP:			10166



	FORMER COMPANY:	

		FORMER CONFORMED NAME:	DREYFUS LIFE & ANNUITY INDEX FUND INC

		DATE OF NAME CHANGE:	19920703



<SERIES-AND-CLASSES-CONTRACTS-DATA>

<EXISTING-SERIES-AND-CLASSES-CONTRACTS>

<SERIES>

<OWNER-CIK>0000846800

<SERIES-ID>S000001911

<SERIES-NAME>Dreyfus Stock Index Fund, Inc.

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000005028

<CLASS-CONTRACT-NAME>Dreyfus Stock Index Fund, Inc. - Initial Shares

</CLASS-CONTRACT>

<CLASS-CONTRACT>

<CLASS-CONTRACT-ID>C000005029

<CLASS-CONTRACT-NAME>Dreyfus Stock Index Fund, Inc. - Service Shares

</CLASS-CONTRACT>

</SERIES>

</EXISTING-SERIES-AND-CLASSES-CONTRACTS>

</SERIES-AND-CLASSES-CONTRACTS-DATA>

</SEC-HEADER>

<DOCUMENT>
<TYPE>N-CSR
<SEQUENCE>1
<FILENAME>lp1-763.htm
<DESCRIPTION>ANNUAL REPORT
<TEXT>
Document 1 - file: lp1-763.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CODE ETH
<SEQUENCE>2
<FILENAME>codeofethics-march2014.htm
<DESCRIPTION>CODE OF ETHICS
<TEXT>
Document 2 - file: codeofethics-march2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>3
<FILENAME>cert302763.htm
<DESCRIPTION>CERTIFICATION REQUIRED BY RULE 30A-2
<TEXT>
Document 3 - file: cert302763.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>4
<FILENAME>cert906763.htm
<DESCRIPTION>CERTIFICATION REQUIRED BY SECTION 906
<TEXT>
Document 4 - file: cert906763.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>x18021212375600.jpg
<TEXT>
Document 6 - file: x18021212375600.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>x18021212375601.jpg
<TEXT>
Document 7 - file: x18021212375601.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>x18021212375700.jpg
<TEXT>
Document 8 - file: x18021212375700.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>x18021212375701.jpg
<TEXT>
Document 9 - file: x18021212375701.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>x18021212375800.jpg
<TEXT>
Document 10 - file: x18021212375800.jpg

</DOCUMENT>
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<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>x18021212375801.jpg
<TEXT>
Document 11 - file: x18021212375801.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>COVER
<SEQUENCE>12
<FILENAME>filename12.htm
<TEXT>
Document 12 - file: filename12.htm

</DOCUMENT>
</SEC-DOCUMENT>