    <SEC-DOCUMENT>0001171843-20-001543-index.html : 20200306
    <SEC-HEADER>0001171843-20-001543.hdr.sgml : 20200306
    <ACCEPTANCE-DATETIME>20200306135016
    ACCESSION NUMBER:		0001171843-20-001543
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		5
    CONFORMED PERIOD OF REPORT:	20200302
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20200306
    DATE AS OF CHANGE:		20200306

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			HARVARD BIOSCIENCE INC
    		CENTRAL INDEX KEY:			0001123494
    		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
    		IRS NUMBER:				043306140
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33957
    		FILM NUMBER:		20693897

    	BUSINESS ADDRESS:
    		STREET 1:		84 OCTOBER HILL RD
    		CITY:			HOLLISTON
    		STATE:			MA
    		ZIP:			01746
    		BUSINESS PHONE:		5088938999

    	MAIL ADDRESS:
    		STREET 1:		84 OCTOBER HILL ROAD
    		CITY:			HOLLISTON
    		STATE:			MA
    		ZIP:			01746
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>f8k_030620.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: f8k_030620.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>exh_101.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 2 - file: exh_101.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>exh101_01.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: exh101_01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>exh101_02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: exh101_02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>exh101_03.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: exh101_03.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>