The treatment cost of gastric cancer is about 100,000 RMB, as follows: 1. Pre-operative examination cost: patients with gastric cancer need to undergo several pre-operative examinations, including CT examination, magnetic resonance examination and several blood tests, in order to accurately judge the disease, which costs about 10,000 RMB; 2. Surgery cost: during the process of surgery for gastric cancer patients, the application of surgical instruments such as anastomosis and closure device will be increased in order to improve the quality of surgery, which costs about 50,000-60,000 RMB; 3. Post-operative treatment cost: 6-8 chemotherapy courses are routinely performed, which costs about 30,000-50,000 RMB.