Pancreatic fistula is one of the serious complications after pancreatic surgery. It is not self-healing and usually requires drainage surgery to heal. The main treatment for pancreatic fistula is to keep the drainage open and to give nutritional support, and to choose fasting just after the surgery, because eating will cause the gastrointestinal tract to secrete gastrointestinal fluid and cause some stimulation to the pancreas. During the recovery period, the diet should be light and cold, spicy and stimulating foods should be avoided as much as possible, and smoking and alcohol should be prohibited. During the recovery period, we should take good care of the patient, pay more attention to the observation, prevent the occurrence of infection, and seek medical attention immediately if other uncomfortable symptoms occur to prevent other damage to the body.