Gastric ulcer perforation is a common complication of gastric ulcer, which belongs to surgical emergency abdomen, and the symptoms are mainly reflected in the following aspects: 1. mainly pain in the upper abdomen, which eventually develops into continuous pain in the whole abdomen, and the nature of the pain is unbearable; 2. the perforated digestive fluid can pass through the right colon and bladder to the right lower abdomen, leading to pain and discomfort in the right lower abdomen; 3. ulcer perforation can lead to fluid accumulation and loss of digestive fluid, intra-abdominal infection leading to symptoms of heartburn and shock, and can also lead to infection and fever. With the entry of digestive fluid into the abdominal cavity, within 2-6 hours digestive fluid and abdominal exudate neutralization, the patient’s abdominal pain symptoms temporarily alleviated, with the passage of time, the symptoms of bacterial peritonitis persistently aggravated will appear abdominal pain persistently can not be relieved; 4, the signs of gastric ulcer perforation manifested as total abdominal pressure pain and rebound pain, and manifested as platysmal abdomen, pressure pain is very obvious. 5, auscultation of intestinal sounds disappeared, palpation of hepatic turbid tone boundary reduced or disappearance of hepatic turbid borders, or even palpation can feel the mass formed due to encapsulation.