v3.26.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document and Entity Information  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Securities Act File Number 001-41611
Entity Registrant Name Hesai Group
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 10th Floor, Building A
Entity Address, Address Line Two No. 658 Zhaohua Road, Changning District
Entity Address, City or Town Shanghai
Entity Address, Postal Zip Code 200050
Entity Address, Country CN
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Entity Central Index Key 0001861737
Document Fiscal Period Focus FY
Amendment Flag false
Auditor Name Deloitte Touche Tohmatsu Certified Public Accountants LLP
Auditor Location Shanghai, the People’s Republic of China
Auditor Firm ID 1113
Entity Common Stock, Shares Outstanding 156,145,167
American depositary shares  
Document and Entity Information  
Title of 12(b) Security American depositary shares, each representing one Class B ordinary share
Trading Symbol HSAI
Security Exchange Name NASDAQ
Class B ordinary share  
Document and Entity Information  
Title of 12(b) Security Class B ordinary share, par value US$0.0001 per share
No Trading Symbol Flag true
Entity Common Stock, Shares Outstanding 129,146,306
Class A ordinary share  
Document and Entity Information  
Entity Common Stock, Shares Outstanding 26,998,861
Business Contact  
Document and Entity Information  
Contact Personnel Name Peng Fan, Chief Financial Officer
Entity Address, Address Line One 10th Floor, Building A
Entity Address, Address Line Two No.658 Zhaohua Road
Entity Address, Address Line Three Changning District
Entity Address, City or Town Shanghai
Entity Address, Postal Zip Code 200050
Entity Address, Country CN
Contact Personnel Email Address ir@hesaitech.com
Country Region 86
City Area Code 21
Local Phone Number 3158-8240