    <SEC-DOCUMENT>0001193125-19-057350-index.html : 20190228
    <SEC-HEADER>0001193125-19-057350.hdr.sgml : 20190228
    <ACCEPTANCE-DATETIME>20190228155958
    ACCESSION NUMBER:		0001193125-19-057350
    CONFORMED SUBMISSION TYPE:	N-CSRS
    PUBLIC DOCUMENT COUNT:		9
    CONFORMED PERIOD OF REPORT:	20181231
    FILED AS OF DATE:		20190228
    DATE AS OF CHANGE:		20190228
    EFFECTIVENESS DATE:		20190228

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PIMCO STRATEGIC INCOME FUND, INC
    		CENTRAL INDEX KEY:			0000916183
    		IRS NUMBER:				943194834
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			0630

    	FILING VALUES:
    		FORM TYPE:		N-CSRS
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-08216
    		FILM NUMBER:		19643075

    	BUSINESS ADDRESS:
    		STREET 1:		1633 BROADWAY
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    		BUSINESS PHONE:		212 739 4000

    	MAIL ADDRESS:
    		STREET 1:		1633 BROADWAY
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PIMCO STRATEGIC GLOBAL GOVERNMENT FUND INC
    		DATE OF NAME CHANGE:	20041005

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RCM STRATEGIC GLOBAL GOVERNMENT FUND INC
    		DATE OF NAME CHANGE:	19931214
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSRS
    <SEQUENCE>1
    <FILENAME>d661196dncsrs.htm
    <DESCRIPTION>N-CSRS
    <TEXT>
    Document 1 - file: d661196dncsrs.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.(A)(2)
    <SEQUENCE>2
    <FILENAME>d661196dex99a2.htm
    <DESCRIPTION>EX-99.(A)(2)
    <TEXT>
    Document 2 - file: d661196dex99a2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.(B)
    <SEQUENCE>3
    <FILENAME>d661196dex99b.htm
    <DESCRIPTION>EX-99.(B)
    <TEXT>
    Document 3 - file: d661196dex99b.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g661239g13e39.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g661239g13e39.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g661239g19a01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g661239g19a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g661239g26k88.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g661239g26k88.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g661239g54k60.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g661239g54k60.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g661239g65f33.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g661239g65f33.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g661239g75h91.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g661239g75h91.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>