Document and Entity Information (USD $)	3 Months Ended
	Jul. 31, 2011	Sep. 30, 2011
Document and Entity Information
Entity Registrant Name	CHINA ADVANCED TECHNOLOGY
Document Type	10-Q
Document Period End Date	Jul. 31, 2011
Amendment Flag	false
Entity Central Index Key	0000820771
Current Fiscal Year End Date	--04-30
Entity Common Stock, Shares Outstanding		4,452,477
Entity Public Float		$ 1,552,477
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1