XML 20 R1.htm IDEA: XBRL DOCUMENT 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 UCLOUDLINK GROUP INC.
Entity Central Index Key 0001775898
Entity File Number 001-39302
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 Non-accelerated Filer
Entity Emerging Growth Company false
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One Unit 2214-Rm1, 22/F, Mira Place Tower A
Entity Address, Address Line Two 132 Nathan Road, Tsim Sha Tsui
Entity Address, City or Town Kowloon
Entity Address, Country HK
Entity Address, Postal Zip Code 122001
American depositary shares  
Entity Listings [Line Items]  
Title of 12(b) Security American depositary shares (one American depositary share representing ten Class A ordinary shares, par value US$0.00005 per share)
Trading Symbol UCL
Security Exchange Name NASDAQ
Class A ordinary shares, par value US$0.00005 per share  
Entity Listings [Line Items]  
Title of 12(b) Security Class A ordinary shares, par value US$0.00005 per share
No Trading Symbol Flag true
Class A ordinary shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 258,499,680
Class B ordinary shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 122,072,980
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name Yimeng Shi
Contact Personnel Email Address ir@ucloudlink.com
Entity Address, Address Line One Unit 2214-Rm1, 22/F, Mira Place Tower A
Entity Address, Address Line Two 132 Nathan Road, Tsim Sha Tsui
Entity Address, City or Town Kowloon
Entity Address, Country HK
Entity Address, Postal Zip Code 122001
Entity Phone Fax Numbers [Line Items]  
City Area Code +852
Local Phone Number 2180-6111