Safety training time is not less than 24 hours. According to the Safety Training Regulations for Production and Business Units, the pre-job safety training time for new employees in production and business units shall not be less than 24 hours, and the safety training time for new employees in coal mines, non-coal mines, dangerous chemicals, fireworks and metal smelting units shall not be less than 72 hours, and the annual retraining time shall not be less than 20 hours. Safety training refers to the training activities to improve the safety awareness and ability of individuals or organizations, which can involve many fields, including workplace safety, traffic safety, fire safety, food safety and environmental protection. The purpose is to help participants understand and master safety knowledge and skills, improve risk prevention and response capabilities, and reduce safety accidents and losses.