Document and Entity Information	3 Months Ended
	Mar. 31, 2012	May 15, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	Cleantech Solutions International, Inc.,
Entity Central Index Key	0000819926
Document Type	10-Q
Document Period End Date	Mar. 31, 2012
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		2,667,017