v3.26.3
Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Apr. 10, 2026
Sep. 30, 2025
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description Hong Yuan Holding Group (the “Company”) is filing this Amendment No. 1 on Form 10-K/A to its Annual Report on Form 10-K for the fiscal year ended December 31, 2025, originally filed with the Securities and Exchange Commission on May 8, 2026.    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Current Fiscal Year End Date --12-31    
Entity File Number 000-56252    
Entity Registrant Name HONG YUAN HOLDING GROUP    
Entity Central Index Key 0001324759    
Entity Tax Identification Number 91-2154289    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One No. 3, 21st Floor    
Entity Address, Address Line Two Building 1, No. 176    
Entity Address, Address Line Three Jiqing 1st Road    
Entity Address, City or Town Chengdu High-tech Zone    
Entity Address, Country CN    
Entity Address, Postal Zip Code 610094    
City Area Code +86    
Local Phone Number 19382185278    
Title of 12(g) Security Common Stock, $0.001 Par Value    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Interactive Data Current No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 1,026,655
Entity Common Stock, Shares Outstanding   74,640,766  
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Auditor Opinion [Text Block] We have audited the accompanying balance sheet of Hong Yuan Holding Group (the Group) as of December 31, 2025, and the related statements of income, stockholders’ equity, and cash flows for the period ended December 31, 2025, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Group as of December 31, 2025, and the results of its operations and its cash flows for the period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.    
Auditor Name Aloba, Awomolo& Partners    
Auditor Firm ID 7275    
Auditor Location Ibadan, Nigeria