OBJECTIVE：To provide refe rence for improving the moni toring system of simplified registration system of Chinese classical formulas. METHODS ：A comparative study was conducted on the simplified registration system of traditional herbal medicines in the European Union and Chinese classical formulas from the aspects of regulatory agencies ，regulatory systems ， simplified registration conditions ，simplified registration catalogs and registration data. On the basis of the experience of the simplified registration system of traditional herbal medicines in the European Union ，some suggestions were put forward to improve the simplified registration system of Chinese classical formulas. RESULTS & CONCLUSIONS ：The European Union establishes special committee on traditional herbal medicine for registration and supervision ；has established a complete regulatory system from directives to specific guidelines ；focuses on the history and conditions of the use of traditional herbal medicine ；has published the European Union monographs and European Union list ，which are used as a basis for safety and effectiveness to further reduce or exempt registration data. In China ，National Medical Products Administration and the National Administration of Traditional Chinese Medicine are jointly responsible for the registration and supervision of classical formulas. At present ，the relevant documents to simplify the registration and approval have been issued ，but there is no corresponding implementation rules and guidelines. China also attaches great importance to the clinical experience of classical formulas ，and emphasizes the consistency of preparation methods and dosage forms with ancient classics. Recently ，China has published the Catalogue of Ancient Classic Formula（the First Batch ），including 100 classical formulas ，and the classic formulas in the catalogue can be exempted from relevant registration materials when applying for registration. Our country can learn from the experience of the European Union and combine the actual situation of classic formulas supervision to establish an expert committee ，focus on quality control and risk control to improve registration and supervision system ，optimize the selection conditions of classic formulas ，and explore the classic formulas monographs ， to further stimulate the innovation vitality of traditional Chinese medicine industry.