The treatment principles for gastric ulcer perforation are: fasting, early surgery, anti - shock, anti - infection, etc. 1. Fasting: Once a patient is diagnosed with acute ulcer perforation, all intake including various medications should be prohibited. The purpose is to minimize the contents and secretions in the stomach. 2. Pain relief: Since the pain caused by ulcer perforation is extremely severe and some patients may go into shock due to the pain, once the diagnosis is confirmed, analgesics such as pethidine can be injected intramuscularly to relieve the patient's pain. 3. Gastrointestinal decompression: A gastric tube should be placed as early as possible to aspirate the gastric contents, reduce gastrointestinal pressure, prevent further contamination of the abdominal cavity, and prevent secondary infections. 4. Intravenous infusion: Based on the severity of the patient's vomiting, urine output, body temperature changes, the amount of gastrointestinal decompression, and blood pressure changes, the infusion volume and electrolytes should be promptly adjusted, and nutritional support treatment should be strengthened. 5. Anti - infection: Antibiotics with strong antibacterial ability and a broad antibacterial spectrum are often used, such as cephalosporins and ampicillin. 6. Surgical or non - surgical treatment: Whether to perform surgical treatment can be determined according to the patient's specific situation and the development of the disease.