Abstract: The incidence of gastric cancer in the upper third of the stomach, including early gastric cancer, is increasing in China, South Korea and Japan. Function-preserving surgery for early gastric cancer is mainly aimed at minimizing postoperative complications and improving postoperative quality of life. Proximal gastrectomy can resect the tumor while preserve part of the stomach tissue which is beneficial to improve the postoperative nutritional status and the postoperative quality of life. However, acid reflux, reflux and the subsequent reflux esophagitis after proximal gastrectomy due to the loss of the esophageal sphincter and His angle would affect postoperative quality of life. Clinical surgeons choose different methods of digestive tract reconstruction to improve the effect of anti-esophagogastric reflux. But there are many kinds of digestive tract reconstruction methods, which are controversial. The authors comprehensively analyze the related research progress at home and abroad, systematically elaborate the current status of digestive tract reconstruction after proximal gastrectomy, and discuss the advantages and disadvantages of various digestive tract reconstruction methods.