Legal basis: Article 70 of People's Republic of China (PRC) Vaccine Management Law, the drug supervision and administration department and the competent health department shall, according to their respective functions and duties, supervise and manage the whole process of vaccine development, production, circulation and inoculation, and supervise the vaccine marketing license holders, disease prevention and control institutions and inoculation units to perform their obligations according to law. The pharmaceutical supervisory and administrative department shall supervise and inspect the vaccine quality in the process of vaccine development, production, storage, transportation and inoculation according to law. The competent health department shall supervise and inspect the implementation of immunization planning system and vaccination activities according to law. The drug supervision and administration department shall strengthen the on-site inspection of vaccine marketing license holders; When necessary, units and individuals that provide products or services for activities such as vaccine development, production and circulation may accept extended inspection; The relevant units and individuals shall cooperate and shall not refuse or conceal.