<SEC-DOCUMENT>0001410368-18-000152-index.html : 20180221
<SEC-HEADER>0001410368-18-000152.hdr.sgml : 20180221
<ACCEPTANCE-DATETIME>20180221153207
ACCESSION NUMBER:		0001410368-18-000152
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180221
DATE AS OF CHANGE:		20180221
EFFECTIVENESS DATE:		20180221

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TCW STRATEGIC INCOME FUND INC
		CENTRAL INDEX KEY:			0000809559
		IRS NUMBER:				930939398
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-04980
		FILM NUMBER:		18628233

	BUSINESS ADDRESS:	
		STREET 1:		865 S FIGUEROA ST STE 1800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90071
		BUSINESS PHONE:		2132440000

	MAIL ADDRESS:	
		STREET 1:		865 S. FIGUEROA STREET,
		STREET 2:		SUITE 1800
		CITY:			LOSANGELES
		STATE:			CA
		ZIP:			90017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TCW CONVERTIBLE SECURITIES FUND INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>answer.fil
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>tsiLetter.txt
<TEXT>
Document 2 - file: tsiLetter.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>tcwtsi77c.txt
<TEXT>
Document 3 - file: tcwtsi77c.txt

</DOCUMENT>
</SEC-DOCUMENT>