The safety education and training time for new employees shall not be less than 72 hours. The safety training time for new employees shall not be less than 72 hours, and the annual retraining time shall not be less than 20 hours. This is a regulation for some high-risk industries, including coal mines, non-coal mines, dangerous chemicals, fireworks and other production and business units. Because of the particularity of work, these industries require high safety knowledge and skills of employees, so long-term safety training is needed to ensure that employees can fully understand and master the necessary safety operation norms and emergency measures. Safety education and training is an important means for enterprises to ensure the safety and health of employees, which is of great significance for improving employees' safety awareness and preventing production safety accidents. Effective safety education and training can help employees understand and master relevant safety laws and regulations, improve safety technical quality and enhance safety awareness, which is the basis for ensuring safety production.