    <SEC-DOCUMENT>0000928816-18-000826-index.html : 20180426
    <SEC-HEADER>0000928816-18-000826.hdr.sgml : 20180426
    <ACCEPTANCE-DATETIME>20180426131115
    ACCESSION NUMBER:		0000928816-18-000826
    CONFORMED SUBMISSION TYPE:	N-CSRS
    PUBLIC DOCUMENT COUNT:		18
    CONFORMED PERIOD OF REPORT:	20180228
    FILED AS OF DATE:		20180426
    DATE AS OF CHANGE:		20180426
    EFFECTIVENESS DATE:		20180426

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PUTNAM HIGH INCOME SECURITIES FUND
    		CENTRAL INDEX KEY:			0000810943
    		IRS NUMBER:				046562068
    		STATE OF INCORPORATION:			MA
    		FISCAL YEAR END:			0831

    	FILING VALUES:
    		FORM TYPE:		N-CSRS
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-05133
    		FILM NUMBER:		18777504

    	BUSINESS ADDRESS:
    		STREET 1:		ONE POST OFFICE SQ
    		STREET 2:		MAILSTOP A 14
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02109
    		BUSINESS PHONE:		8002251581

    	MAIL ADDRESS:
    		STREET 1:		PUTNAM LLC
    		STREET 2:		ONE POST OFFICE SQ
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02109

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PUTNAM HIGH INCOME BOND FUND
    		DATE OF NAME CHANGE:	20030408

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PUTNAM HIGH BOND FUND
    		DATE OF NAME CHANGE:	20021107

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	PUTNAM HIGH INCOME CONVERTIBLE & BOND FUND
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSRS
    <SEQUENCE>1
    <FILENAME>a_highincomesecurities.htm
    <DESCRIPTION>PUTNAM HIGH INCOME SECURITIES FUND
    <TEXT>
    Document 1 - file: a_highincomesecurities.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>2
    <FILENAME>b_061certifications.htm
    <DESCRIPTION>CERTIFICATIONS
    <TEXT>
    Document 2 - file: b_061certifications.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906 CERT
    <SEQUENCE>3
    <FILENAME>c_061noscertification.htm
    <DESCRIPTION>906CERTIFICATIONS
    <TEXT>
    Document 3 - file: c_061noscertification.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>highincsecx1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: highincsecx1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>highincsecx3x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: highincsecx3x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>highincsecx4x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: highincsecx4x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>highincsecx4x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: highincsecx4x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>highincsecx5x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: highincsecx5x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>highincsecx6x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: highincsecx6x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>highincsecx6x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: highincsecx6x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>highincsecx7x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: highincsecx7x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>highincsecx7x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: highincsecx7x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>highincsecx8x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: highincsecx8x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>highincsecx8x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: highincsecx8x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>highincsecx9x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: highincsecx9x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>highincsecx9x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: highincsecx9x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>highincsecx10x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: highincsecx10x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>highincsecx56x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: highincsecx56x1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>