Three-level safety education is divided into factory education, workshop education and class education. Enterprises must carry out safety education for new employees entering factories, workshops and teams; For workers who have changed jobs, resumed work and adopted new technologies, new processes, new equipment and new materials, safety and health education on new posts and new working methods must be carried out, and the educated can only engage in post operation after passing the examination. Three-level safety education refers to the basic form of safety education system for new employees, new employees, new workshops, new posts (departments and teams) and industrial and mining enterprises. Three-level safety education system is the basic education system of enterprise safety education. There are some misunderstandings in the three-level safety education: 1. The educational procedure is unclear. Some units do not understand this, and some units have not been assigned to secondary units through factory education. Later, the security department knew that it was necessary to make up for the safety of factory education, which led to the "lag" of education. Figure 2. Education is incomplete. The so-called three-level safety education is the three-level safety education at the factory level (workshop level) and the team level. Without first-level safety education, it can't be called third-level safety education. Figure 3. There is not enough time for education. Article 9 of the Regulations on Safety Training of Production and Business Units issued by Order No.3 of the State Administration of Work Safety stipulates that the first safety training time for the main persons in charge of production and business units and safety production and business personnel shall not be less than 32 hours. The annual retraining time shall not be less than 12 hours. Reference source: Baidu Encyclopedia Level 3 Safety Education