<SEC-DOCUMENT>0000846800-18-000005-index.html : 20180410
<SEC-HEADER>0000846800-18-000005.hdr.sgml : 20180410
<ACCEPTANCE-DATETIME>20180410160348
ACCESSION NUMBER:		0000846800-18-000005
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		11
FILED AS OF DATE:		20180410
DATE AS OF CHANGE:		20180410
EFFECTIVENESS DATE:		20180501

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:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-27172
		FILM NUMBER:		18748051

	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

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:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05719
		FILM NUMBER:		18748052

	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>485BPOS
<SEQUENCE>1
<FILENAME>lp1763.htm
<DESCRIPTION>POST-EFFECTIVE AMENDMENT NO. 43
<TEXT>
Document 1 - file: lp1763.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.E UNDR CONTR
<SEQUENCE>2
<FILENAME>bdsellingagrmt.htm
<DESCRIPTION>BROKER DEALER SELLING AGREEMENT
<TEXT>
Document 2 - file: bdsellingagrmt.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.E UNDR CONTR
<SEQUENCE>3
<FILENAME>banksellingagrmt.htm
<DESCRIPTION>BANK SELLING AGREEMENT
<TEXT>
Document 3 - file: banksellingagrmt.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.J OTHER OPININ
<SEQUENCE>4
<FILENAME>acct_lttr-eyconsentdsif.htm
<DESCRIPTION>CONSENT OF INDEPENDENT ACCOUNTANT
<TEXT>
Document 4 - file: acct_lttr-eyconsentdsif.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>5
<FILENAME>dreyfusfundspowerofattorney2.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
Document 5 - file: dreyfusfundspowerofattorney2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>x18040915045501.jpg
<TEXT>
Document 8 - file: x18040915045501.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>x18040915232100.jpg
<TEXT>
Document 9 - file: x18040915232100.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>x18040915232101.jpg
<TEXT>
Document 10 - file: x18040915232101.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>x18040915232102.jpg
<TEXT>
Document 11 - file: x18040915232102.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>x18040915232103.jpg
<TEXT>
Document 12 - file: x18040915232103.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>x18040915232104.jpg
<TEXT>
Document 13 - file: x18040915232104.jpg

</DOCUMENT>
</SEC-DOCUMENT>