Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 08, 2022	Jun. 30, 2021
Document Information Line Items
Entity Registrant Name	SHARING ECONOMY INTERNATIONAL INC.
Trading Symbol	SEII
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		239,278,847
Entity Public Float			$ 1,564,691
Amendment Flag	false
Entity Central Index Key	0000819926
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-34591
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	90-0648920
Entity Address, Address Line One	No.85 Castle Peak Road
Entity Address, Address Line Two	Castle Peak Bay
Entity Address, Address Line Three	Tuen Mun
Entity Address, City or Town	N.T.
Entity Address, Country	HK
City Area Code	(852)
Local Phone Number	2583-2186
Title of 12(b) Security	common stock, par value $0.001 per share
Entity Interactive Data Current	Yes
Auditor Name	BF Borgers CPA PC
Auditor Location	Lakewood, CO
Auditor Firm ID	5041
Entity Address, Postal Zip Code	00000
Security Exchange Name	NONE