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 Nano Labs Ltd
Entity Central Index Key 0001872302
Entity File Number 001-41426
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 Jan. 08, 2021
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One China Yuangu Hanggang Technology Building
Entity Address, Address Line Two 509 Qianjiang Road
Entity Address, Address Line Three Shangcheng District
Entity Address, City or Town Hangzhou, Zhejiang
Entity Address, Country CN
Entity Address, Postal Zip Code 310000
Entity Listings [Line Items]  
Title of 12(b) Security Class A ordinary shares
No Trading Symbol Flag true
Security Exchange Name NASDAQ
Class A Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 20,637,924
Class B Ordinary Shares  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 2,858,909
Business Contact [Member]  
Entity Contact Personnel [Line Items]  
Contact Personnel Name Mr. Jianping Kong
Contact Personnel Email Address jack@nano.cn
Entity Address, Address Line One China Yuangu Hanggang Technology Building
Entity Address, Address Line Two 509 Qianjiang Road
Entity Address, Address Line Three Shangcheng District
Entity Address, City or Town Hangzhou, Zhejiang
Entity Address, Country CN
Entity Address, Postal Zip Code 310000
Entity Phone Fax Numbers [Line Items]  
City Area Code (86)
Local Phone Number 0571-8665 6957