Which one has better prognosis, distal gastrectomy or proximal gastrectomy for gastric adenocarcinoma, is mainly determined by the site of gastric cancer and cannot be generalized. If gastric adenocarcinoma is confined to the proximal part, proximal gastrectomy will be performed; if gastric adenocarcinoma is confined to the distal part, distal gastrectomy will be performed. Specific explanations are as follows. 1. Proximal gastrectomy for gastric adenocarcinoma: for tumors in the upper part of stomach, proximal gastrectomy can only be performed after meeting very strict conditions, in which the proximal part of stomach and gastric cardia are removed and then the distal part of stomach is anastomosed to the esophagus, and this kind of operation will lead to very serious postoperative reflux. 2. Distal gastrectomy for gastric adenocarcinoma: for tumors confined to the distal part of the stomach, distal gastrectomy should be performed, at this time, the distal part of the stomach can be resected purely and gastrojejunal anastomosis can be done at the same time, and the surrounding lymph nodes can be cleared, and then reconstruction of the digestive tract can be carried out after the operation. All in all, the choice of which surgical method should be judged by professional and authoritative gastric cancer experts according to the specific conditions of patients, and the choice of surgical methods is also different for different parts of gastric cancer.