Document And Entity Information	3 Months Ended
	Mar. 31, 2021 shares
Document Information Line Items
Entity Registrant Name	SHARING ECONOMY INTERNATIONAL INC.
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding	193,670,023
Amendment Flag	false
Entity Central Index Key	0000819926
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity File Number	001-34591
Entity Incorporation, State or Country Code	NV
Entity Interactive Data Current	Yes