When a surgeon operates on a patient with gastric cancer, the task is not only to remove the cancerous tumor site, but also to thoroughly clear the lymph node tissue around the stomach. However, the current situation is that many gastric cancer surgeries are not “standardized” in this way. When operating on gastric cancer patients, doctors should implement “standardized” treatment, and patients should also request such treatment to ensure postoperative survival rates. Although Japan is also a country with a high incidence of GI malignant tumors, their cure rate of GI malignant tumors is significantly higher than that of other countries, and one important reason is that this country has implemented “standardized and standardized” treatment for all patients undergoing radical surgery for gastric cancer. In other words, when a surgeon operates on a patient, the task is not only to remove the cancerous part of the tumor, but also to completely remove the lymph node tissue around the stomach. Performing such a “standard surgery” is a guarantee for the patient’s healing and can significantly increase the patient’s survival rate for five years after surgery. ”The traditional surgery is less difficult and shorter, so the surgeon does not have to take a big risk; while taking the standard surgery, one surgery is equivalent to the original two surgeries, and the implementation of lymph node dissection often involves multiple important blood vessels and tissues of multiple organs, not only to avoid damage to the blood vessels, but also to remove the lymph nodes around the vessels and other tissues, the surgery is difficult and long The surgery is difficult and long, and requires a higher level of skill for the surgeon, and a slight inadvertence can lead to failure, for which the surgeon has to take the risk.” A domestic doctor said, because the domestic surgical treatment of gastrointestinal malignant tumors has not yet established scientific and unified standards and norms, coupled with the “fear of difficulty” mentality of some surgeons, resulting in the inability to widely carry out standardized lymph node dissection, which is also an important reason for the high mortality rate of gastric cancer in China after surgery.