v3.26.1
Cover
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Financial Statement Error Correction [Flag] false
Document Shell Company Report false
Entity Interactive Data Current Yes
Document Accounting Standard U.S. GAAP
ICFR Auditor Attestation Flag false
Amendment Flag false
Document Period End Date Dec. 31, 2025
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Information [Line Items]  
Entity Registrant Name BitFuFu Inc.
Entity Central Index Key 0001921158
Entity File Number 001-41972
Entity Incorporation, State or Country Code E9
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Shell Company false
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Incorporation, Date of Incorporation Feb. 16, 2022
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One 7 Temasek Boulevard
Entity Address, Address Line Two Suntec Tower 1, #11-01
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 038987
Class A ordinary shares, par value US$0.0001 per share  
Entity Listings [Line Items]  
Title of 12(b) Security Class A ordinary shares, par value US$0.0001 per share
Trading Symbol FUFU
Security Exchange Name NASDAQ
Warrants, each exercisable for three fourths (3/4) of Class A ordinary share  
Entity Listings [Line Items]  
Title of 12(b) Security Warrants, each exercisable for three fourths (3/4) of Class A ordinary share
Trading Symbol FUFUW
Security Exchange Name NASDAQ
Class A Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 31,613,948
Class B Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 135,000,000
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name Leo Lu
Entity Address, Address Line One 7 Temasek Boulevard
Entity Address, Address Line Two Suntec Tower 1, #11-01
Entity Address, City or Town Singapore
Entity Address, Country SG
Entity Address, Postal Zip Code 038987
Entity Phone Fax Numbers [Line Items]  
City Area Code +65
Local Phone Number 6252 7569