    <SEC-DOCUMENT>0001193125-25-230033-index.html : 20251003
    <SEC-HEADER>0001193125-25-230033.hdr.sgml : 20251003
    <ACCEPTANCE-DATETIME>20251003155454
    ACCESSION NUMBER:		0001193125-25-230033
    CONFORMED SUBMISSION TYPE:	N-CSR
    PUBLIC DOCUMENT COUNT:		17
    CONFORMED PERIOD OF REPORT:	20250731
    FILED AS OF DATE:		20251003
    DATE AS OF CHANGE:		20251003
    EFFECTIVENESS DATE:		20251003

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BLACKROCK MUNIYIELD QUALITY FUND II, INC.
    		CENTRAL INDEX KEY:			0000887394
    		ORGANIZATION NAME:
    		EIN:				223194461
    		STATE OF INCORPORATION:			NJ
    		FISCAL YEAR END:			1031

    	FILING VALUES:
    		FORM TYPE:		N-CSR
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-06660
    		FILM NUMBER:		251373577

    	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:	MUNIYIELD QUALITY FUND II INC
    		DATE OF NAME CHANGE:	19920929
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSR
    <SEQUENCE>1
    <FILENAME>d939433dncsr.htm
    <DESCRIPTION>BLACKROCK MUNIYIELD QUALITY FUND II, INC.
    <TEXT>
    Document 1 - file: d939433dncsr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>2
    <FILENAME>d939433dex99cert.htm
    <DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 302
    <TEXT>
    Document 2 - file: d939433dex99cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906 CERT
    <SEQUENCE>3
    <FILENAME>d939433dex99906cert.htm
    <DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 906
    <TEXT>
    Document 3 - file: d939433dex99906cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.PROXYPOL
    <SEQUENCE>4
    <FILENAME>d939433dex99proxypol.htm
    <DESCRIPTION>PROXY VOTING POLICY AND PROCEDURES
    <TEXT>
    Document 4 - file: d939433dex99proxypol.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g939433dsp16aa.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g939433dsp16aa.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g939433dsp16aaa.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g939433dsp16aaa.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g939433g43f38.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g939433g43f38.jpg

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    <DOCUMENT>
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    <SEQUENCE>8
    <FILENAME>g939433img0f86c9dc6.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g939433img0f86c9dc6.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g939433img2b1fce842.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g939433img2b1fce842.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g939433img5f7d34f58.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g939433img5f7d34f58.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g939433img67aeae2b10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g939433img67aeae2b10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g939433img807c9c2e1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g939433img807c9c2e1.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g939433img995db7a79.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g939433img995db7a79.gif

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    <DOCUMENT>
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    <SEQUENCE>14
    <FILENAME>g939433imga1463e024.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: g939433imga1463e024.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>g939433imga98e299d3.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: g939433imga98e299d3.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>g939433imgbef85fd57.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: g939433imgbef85fd57.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>g939433imgc72dd0175.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: g939433imgc72dd0175.gif

    </DOCUMENT>
    </SEC-DOCUMENT>