<SEC-DOCUMENT>0001104659-19-031344-index.html : 20190523
<SEC-HEADER>0001104659-19-031344.hdr.sgml : 20190523
<ACCEPTANCE-DATETIME>20190523084527
ACCESSION NUMBER:		0001104659-19-031344
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		1
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20181231
</ITEM>
</RULE>
FILED AS OF DATE:		20190523
DATE AS OF CHANGE:		20190523

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Canadian Solar Inc.
		CENTRAL INDEX KEY:			0001375877
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33107
		FILM NUMBER:		19848043

	BUSINESS ADDRESS:	
		STREET 1:		545 SPEEDVALE AVENUE
		STREET 2:		WEST GUELPH
		CITY:			ONTARIO
		STATE:			A6
		ZIP:			N1K 1E6
		BUSINESS PHONE:		(86-512) 6690-8088

	MAIL ADDRESS:	
		STREET 1:		NO. 199 LUSHAN ROAD, SUZHOU NEW DISTRICT
		STREET 2:		SUZHOU
		CITY:			JIANGSU
		STATE:			F4
		ZIP:			215129
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>a19-10550_1sd.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: a19-10550_1sd.htm

</DOCUMENT>
</SEC-DOCUMENT>