Laparoscopic distal gastrectomy is the main surgical method for lower gastric cancer. As an important part of surgery，digestive tract reconstruction directly affects the postoperative quality of life of patients. BillrothⅠanastomosis，BillrothⅡanastomosis，Roux-en-Y anastomosis and their corresponding improved methods，Braun anastomosis and Uncut Roux-en-Y anastomosis，are the main reconstruction methods at present. The BillrothⅠanastomosis was physiologically consistent，but was limited by the size and location of the primary tumor. BillrothⅡanastomosis had no tumor staging requirements and solved the problem of anastomotic tension. After combined Braun anastomosis，the risk of postoperative reflux gastritis was significantly reduced. Roux-en-Y anastomosis completely solved bile reflux gastritis，but the operation was complicated and the intestinal continuity was damaged，which was prone to Roux-en-Y stasis syndrome after surgery. Although Uncut Roux-en-Y anastomosis may cause recanalization of the afferent limb，it is still a relatively ideal reconstruction method.