<SEC-DOCUMENT>0001287695-15-000151-index.html : 20150424
<SEC-HEADER>0001287695-15-000151.hdr.sgml : 20150424
<ACCEPTANCE-DATETIME>20150424155057
ACCESSION NUMBER:		0001287695-15-000151
CONFORMED SUBMISSION TYPE:	NSAR-A
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20150228
FILED AS OF DATE:		20150424
DATE AS OF CHANGE:		20150424
EFFECTIVENESS DATE:		20150424

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK CORE BOND TRUST
		CENTRAL INDEX KEY:			0001160864
		IRS NUMBER:				522346891
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-A
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-10543
		FILM NUMBER:		15791723

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		888-825-2257

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-A
<SEQUENCE>1
<FILENAME>answer.fil
<TEXT>
Document 1 - file: answer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77C VOTES
<SEQUENCE>2
<FILENAME>bhk77c.htm
<TEXT>
Document 2 - file: bhk77c.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77M MERGERS
<SEQUENCE>3
<FILENAME>bhk77m.htm
<TEXT>
Document 3 - file: bhk77m.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>4
<FILENAME>bhk77q1e.htm
<TEXT>
Document 4 - file: bhk77q1e.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>5
<FILENAME>bhk77q1g.htm
<TEXT>
Document 5 - file: bhk77q1g.htm

</DOCUMENT>
</SEC-DOCUMENT>