Closed duodenum Zhang Bin, Department of General Surgery, Henan Provincial Cancer Hospital, cut off the stomach Stump gastric jejunum linear anastomosis Closed gastric jejunum severed end Postoperative incision length Gastric cancer full laparoscopic resection anastomosis, abdominal incision reduced to about 4cm, patients recover quickly after surgery, less painful, get out of bed early, and fast recovery of gastrointestinal tract function. Due to the difficulty of gastric cancer surgery, laparoscopy is not widely used in gastric cancer resection, especially complete laparoscopic resection anastomosis is carried out in only a dozen hospitals in China, and our laparoscopic technology is leading in China.