Cover - USD ($)	12 Months Ended
	Feb. 28, 2022	Nov. 30, 2022	Aug. 31, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Feb. 28, 2022
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--02-28
Entity File Number	000-53520
Entity Registrant Name	DISCOVERY ENERGY CORP.
Entity Central Index Key	0001435387
Entity Tax Identification Number	98-0507846
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	One Riverway Drive
Entity Address, Address Line Two	Suite 1700
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	840-6495
Title of 12(b) Security	Common Stock, par value $.001 per share
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 7,698,886
Entity Common Stock, Shares Outstanding		154,365,396
ICFR Auditor Attestation Flag	false
Auditor Firm ID	688
Auditor Name	Marcum LLP
Auditor Location	Houston, Texas