Document and Entity Information	6 Months Ended
	Dec. 31, 2018 shares
Document And Entity Information
Entity Registrant Name	Golden Star Resource Corp.
Entity Central Index Key	0001375348
Document Type	10-Q
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Filer Category	Non-accelerated Filer
Entity Small Business Flag	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding	7,070,000
Trading Symbol	GLNS
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019