<SEC-DOCUMENT>0001193125-18-003970-index.html : 20180105
<SEC-HEADER>0001193125-18-003970.hdr.sgml : 20180105
<ACCEPTANCE-DATETIME>20180105114501
ACCESSION NUMBER:		0001193125-18-003970
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20171031
FILED AS OF DATE:		20180105
DATE AS OF CHANGE:		20180105
EFFECTIVENESS DATE:		20180105

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIYIELD QUALITY FUND, INC.
		CENTRAL INDEX KEY:			0000890196
		IRS NUMBER:				223170744
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06660
		FILM NUMBER:		18512588

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACKROCK MUNIYIELD QUALITY FUND INC
		DATE OF NAME CHANGE:	20061026

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIYIELD QUALITY FUND INC
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d481575dncsrs.htm
<DESCRIPTION>BLACKROCK MUNIYIELD QUALITY FUND, INC.
<TEXT>
Document 1 - file: d481575dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d481575dex99cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
<TEXT>
Document 2 - file: d481575dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d481575dex99906cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
<TEXT>
Document 3 - file: d481575dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g451348g44u23.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g451348g44u23.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g451348g60r02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g451348g60r02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g451348g62x45.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g451348g62x45.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g451348g65b16.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g451348g65b16.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g451348g91h59.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g451348g91h59.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g451348g98u13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g451348g98u13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g451348leaf.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g451348leaf.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g470143photo_01mips.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g470143photo_01mips.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g470143sig_01mips.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g470143sig_01mips.jpg

</DOCUMENT>
</SEC-DOCUMENT>