Anastomotic stenosis after surgery for esophageal cancer and cardia cancer is a more common complication in the distant stage, and in serious cases, patients have difficulty in eating and experience wasting and weight loss. Besides the stenosis factor caused by tumor recurrence, other common factors include tension in the esophagogastric anastomosis during anastomosis, local ischemia of gastric tissue, anastomotic scar stenosis, reflux esophagitis, excessive tissue encapsulation during surgery, and many other factors. Esophagogastric neck anastomosis is more prone to anastomotic stricture. The methods and measures to reduce postoperative anastomotic stenosis are: 1. 6.Anastomosis with an oblique anastomosis may increase the diameter of the anastomosis; 7.Anastomosis with a tubular anastomosis with additional purse-string sutures on the gastric side, which may help to reduce anastomotic stenosis by removing slightly more gastric tissue after anastomosis; 8.Lateral anastomosis with a linear suture may form a larger anastomosis, which can effectively reduce the incidence of postoperative anastomotic stenosis The incidence of postoperative anastomotic stenosis can be effectively reduced; 9. Regular postoperative administration of acid suppressants and mucosal protectants may be helpful.