Accompanied by the progress of science and technology, clinical medicine in the twenty-first century has entered the era of minimally invasive medicine, and most of the diagnostic and treatment processes will minimize trauma, and the traditional large incisions, large trauma, and prolonged hospitalization will become history. Take the treatment of gastrointestinal tumors as an example, in western developed countries and some large hospitals in China, minimally invasive laparoscopic surgery has become the main way to remove gastrointestinal tumors. The vast majority of gastrointestinal tumors can be resected under laparoscopy, and through the clear amplification effect of laparoscopy, tumor resection and lymph node dissection can be carried out more safely, accurately and thoroughly, which not only achieves the effect of radical resection, but also significantly reduces the bleeding and trauma, and promotes the postoperative recovery, and the incision is greatly shortened compared with that of the traditional open surgery, which alleviates the pain of the wound in the postoperative period, and eliminates the risk of wound infection in the postoperative period. Most of the patients with gastrointestinal cancer undergo laparoscopic surgery, and the hospitalization recovery time after laparoscopic surgery is no more than one week. For those benign tumors located near gastric cardia and pylorus as well as larger gastrointestinal polyps and mesenchymal tumors that can not be resected by gastroscopy, laparoscopy and gastroscopy can be used in the operation, and the positioning and observation before and after resection of gastroscopy can be used to guide laparoscopy to carry out precise resection of the mass, and the normal gastric tissues can be kept as far as possible while removing the mass, so as to make the patients obtain the best therapeutic effect with the smallest trauma and the fastest recovery. Getting the best therapeutic effect. Minimally invasive surgery for gastrointestinal tumors will be a way for patients to stay away from complications such as post-surgical incision pain, incision infection, and intestinal adhesions.