1, personnel's mentality is unstable. In a relaxed state during the holiday, if you enter a tense working state soon, the workload of the staff will increase, their mood will be unstable and their attention will be distracted. It is necessary to carry out post-holiday education and training to ensure the safe and orderly post-holiday work.

2. Insufficient personnel capacity. After the holiday, there are more new employees, job rotation and job changes, and they are not familiar with operating procedures and safety regulations. It is necessary to carry out post-holiday education and training to ensure the safe and orderly post-holiday return to work.