Gastrostomy surgery is mainly used for patients who can’t eat because of esophageal obstruction, and the surgical steps mainly include preoperative preparation, anesthesia and disinfection, opening and placing the tube, and closing the incision. 1. Preoperative preparation: routine examination is needed before surgery to ensure the safety of surgery. If the patient has serious cardiopulmonary function abnormality, serious abdominal infection, coagulation dysfunction, etc., the surgical operation can not be carried out for the time being. 2. Anesthesia disinfection: Anesthesia is mainly epidural anesthesia and general anesthesia, and in general, choosing epidural anesthesia is enough. After successful anesthesia, the surgical area will be routinely sterilized. 3. Open abdominal tube placement: mostly choose the left upper abdominal longitudinal incision, cutting the abdominal wall layer by layer to reach the abdominal cavity. A fistula opening is usually chosen in the anterior wall of the stomach near the pylorus, and a purse-string suture is made. Then the stomach wall is incised in the central area, and after emptying the stomach contents, a drainage tube is put in and ligated. A purse-string suture is again placed around the drain tube and the gastric wall is turned inward to secure the drain tube. The drain tube is applied along the longitudinal axis of the gastric wall and embedded in the plasma muscle layer to prepare for the later extubation. 4. Close the incision: make a small incision on the left side of the incision, and then drain the drainage tube out of the small incision. After cleaning the abdominal cavity, the incision is closed layer by layer to complete the operation.