    <SEC-DOCUMENT>0001193125-21-264269-index.html : 20210902
    <SEC-HEADER>0001193125-21-264269.hdr.sgml : 20210902
    <ACCEPTANCE-DATETIME>20210902134313
    ACCESSION NUMBER:		0001193125-21-264269
    CONFORMED SUBMISSION TYPE:	N-CSRS
    PUBLIC DOCUMENT COUNT:		20
    CONFORMED PERIOD OF REPORT:	20210630
    FILED AS OF DATE:		20210902
    DATE AS OF CHANGE:		20210902
    EFFECTIVENESS DATE:		20210902

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			BlackRock Utilities, Infrastructure & Power Opportunities Trust
    		CENTRAL INDEX KEY:			0001528988
    		IRS NUMBER:				000000000
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1031

    	FILING VALUES:
    		FORM TYPE:		N-CSRS
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-22606
    		FILM NUMBER:		211232532

    	BUSINESS ADDRESS:
    		STREET 1:		100 BELLEVUE PARKWAY
    		CITY:			WILMINGTON
    		STATE:			DE
    		ZIP:			19809-3700
    		BUSINESS PHONE:		(800) 882-0052

    	MAIL ADDRESS:
    		STREET 1:		100 BELLEVUE PARKWAY
    		CITY:			WILMINGTON
    		STATE:			DE
    		ZIP:			19809-3700

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	BlackRock Utility & Infrastructure Trust
    		DATE OF NAME CHANGE:	20110830
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSRS
    <SEQUENCE>1
    <FILENAME>d100809dncsrs.htm
    <DESCRIPTION>BLACKROCK UTILITIES, INFRASTRUCTURE & POWER OPPORTUNITIES TRUST
    <TEXT>
    Document 1 - file: d100809dncsrs.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>2
    <FILENAME>d100809dex99cert.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
    <TEXT>
    Document 2 - file: d100809dex99cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906CERT
    <SEQUENCE>3
    <FILENAME>d100809dex99906cert.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
    <TEXT>
    Document 3 - file: d100809dex99906cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.SECTION19
    <SEQUENCE>4
    <FILENAME>d100809dex99section19.htm
    <DESCRIPTION>SECTION 19 NOTICES
    <TEXT>
    Document 4 - file: d100809dex99section19.htm

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    <SEQUENCE>5
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    <DESCRIPTION>GRAPHIC
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    Document 6 - file: g189088dsp10.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 7 - file: g189088dsp13.jpg

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    Document 8 - file: g189088dsp16.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 9 - file: g189088dsp19.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 10 - file: g189088dsp200.jpg

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    Document 11 - file: g189088dsp33.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 12 - file: g189088dsp36.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 13 - file: g189088dsp39.jpg

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    Document 14 - file: g189088dsp7.jpg

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    Document 15 - file: g189088g01y05.jpg

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    Document 16 - file: g189088g42l24.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 17 - file: g189088g44r34.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 18 - file: g189088g46q50.jpg

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    <FILENAME>g189088photo_01mips.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: g189088photo_01mips.jpg

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    <DESCRIPTION>GRAPHIC
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    Document 20 - file: g189088sig_01mips.jpg

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