Surgery for bowel cancer includes various kinds, and the simple and common basic steps include incision, exploration, resection and so on. 1. Incision: the surgical incision of transverse colectomy is mainly taken via rectus abdominis muscle, paracentral or midline position, and the upper end of the incision is close to the lower rib arch. 2. Exploration: mainly after laparotomy, we need to know the situation of abdominal organs, and whether there are metastasis of abdominal organs, regional lymph node metastasis and so on. 3. Resection: strict attention should be paid to the exposure of the surgical field before the resection, and the mesentery, accompanying arteries, veins, nerves and other tissues should be well separated so as to avoid mis-cutting. After removing the transverse colon, attention should be paid to the docking of the two severed ends, i.e., the anastomosis of the bowel ends of the ascending colon and the descending colon, and the abdominal closure after a good inventory and other work. The above is a simple basic routine steps of intestinal cancer surgery, the specific operation, depending on the condition, individual differences, the operation is really operated, there are a lot of precautions. It is recommended that patients suffering from cancer of the small intestine or large intestine should seek medical treatment in time, receive standardized treatment, consult professional doctors for relevant precautions, etc., and actively cooperate with the treatment to prolong the survival period.