Gastroduodenal ulcer perforation is one of the common acute abdominal conditions and is more common in young people. Because of its rapid onset and unbearable patient pain, most patients are treated surgically with traditional open exploratory incisions, except for a few patients who are successfully treated by non-surgical conservative treatment. In addition to perforation repair, extensive flushing of the abdominal cavity is required, so the surgical incision has to be large enough to cause postoperative incisional pain, infection, and a high chance of dehiscence, as well as postoperative intestinal adhesions and intestinal obstruction. In 1990, French doctor Mouret first carried out laparoscopic ulcer perforation repair, but the domestic clinical popularity is far behind laparoscopic gallbladder. The reasons for this are: 1. sudden onset and heavy symptoms, patients only require to solve the pain as soon as possible and have no choice. 2. The emergency first-visit physicians are relatively shallow in seniority and do not have the concept of laparoscopic repair. 3. Perforation repair requires skilled suturing techniques and a good sense of direction for flushing different parts of the abdominal cavity, which is more difficult than conventional gallbladder surgery. Minimally invasive laparoscopic surgery for gastroduodenal ulcer perforation is less painful for the patient, has low complications, is comparable in efficacy to open surgery, and completes treatment while confirming the diagnosis to avoid greater trauma to the patient due to misdiagnosis. Experienced lumpectomy surgeons perform selective vagotomy at the same time as perforation repair to prevent recurrence of ulcer disease and achieve a cure.