Clinical staging of burns, including the body fluid exudation period, acute infection period, wound repair period, and rehabilitation period. After the burn patient’s skin is damaged, the body fluid begins to exude, the exudate period lasts 1-2 days, the body fluid exudate period patient’s body fluid is very easy to lose, need to replenish a large amount of balanced fluid in time. Acute infection period injured skin due to the loss of protective effect, the body is easy to be infected, need to use antibiotics to prevent or treat infection. During the wound repair period, patients need to strengthen the nutrition, which helps to enhance the body resistance and speed up the wound repair. During the rehabilitation period, the skin can be restored to its original state as much as possible through rehabilitation training and plastic surgery.