Document and Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Document And Entity Information
Entity Registrant Name	Golden Star Resource Corp.
Entity Central Index Key	0001375348
Document Type	10-K
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filer	No
Entity Reporting Status Current	Yes
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business Flag	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Public Float		$ 0
Entity Common Stock, Shares Outstanding	0
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2019