v3.26.1
Cover - shares
 12 Months Ended
Dec. 31, 2025
Apr. 01, 2026
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 International Financial Reporting Standards  
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 ASCENTAGE PHARMA GROUP INTERNATIONAL  
Entity Central Index Key 0002023311  
Entity File Number 333-284064  
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 true  
Entity Ex Transition Period false  
Entity Contact Personnel [Line Items]    
Entity Address, Address Line One 68 Xinqing Road Suzhou Industrial Park  
Entity Address, Address Line Two Suzhou  
Entity Address, City or Town Jiangsu  
Entity Address, Country CN  
Entity Address, Postal Zip Code 00000  
Entity Listings [Line Items]    
Title of 12(b) Security American depositary shares (each representing four ordinary shares, no par value per share)  
Trading Symbol AAPG  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   373,322,192
Business Contact [Member]    
Entity Contact Personnel [Line Items]    
Contact Personnel Name Thomas J. Knapp  
Contact Personnel Email Address thomas.knapp@ascentage.com  
Entity Address, Address Line One 700 King Farm Blvd  
Entity Address, Address Line Two Suite 510  
Entity Address, City or Town Rockville  
Entity Address, State or Province MD  
Entity Address, Postal Zip Code 20850  
Entity Phone Fax Numbers [Line Items]    
City Area Code (301)  
Local Phone Number 520-1026