 Gastric cancer as one of the most common gastrointestinal cancers, radical resection of primary lesions combined with dissection of regional lymph-nodes is acknowledged by surgeons all over the world. When compared with the advanced upper third gastric cancer, proximal gastrectomy has been acknowledged as the standard therapeutic strategy for the early gastric cancer located in the upper third of the stomach. However, due to abandon the anti-reflux barrier of the digestive system caused by the dissection of the cardia and the lower esophageal sphincter, the belchinghiccupAcid refluxheartburnchest pain symptoms and as well as the reflux esophagitis caused by the traditional esophagostomy permanently influence the postoperative quality of life for those patients. Nowadays, relationship between the digestive track reconstruction for proximal gastrectomy and the postoperative quality of life is still with controversies. Previous study reported the gastric tube anastomosis can minimize the reflux related symptoms when compared with traditional esophagogastrostomy. There still exited some patients need long-term anti-acid drug to control the reflux symptoms although underwent the gastric tube anastomosis. The double-track anastomosis for proximal gastrectomy may successfully control the reflux symptoms and there existed study found it is as safe as the esophagostomy. But there has no randomized control study to compare the postoperative quality of life between the gastric tube anastomosis and double-track anastomosis for proximal gastrectomy. 