In order to ensure the safety and preservation of biological experiments of faculty, staff and teachers, biosafety committee takes “hierarchical management, implementation of notification, and key verification” as the core and formulates a hierarchical management mechanism based on the hazard risks of infectious biological materials, as well as establish regulations on the management of infectious biological materials laboratories and storage sites, regulations on the use, translocation (including addition, destruction, distribution and storage, etc.), import/export, preservation and transportation of infectious biological materials, policies on the disposal and sterility of biological experimental wastes, and strengthening the reporting mechanism of accidents, etc.