The survival rate of cancer patients is often expressed as five-year survival rate, and the survival rate of Borrmann4 gastric cancer patients is lower, and its five-year survival rate is around 30%. Borrmann4 gastric cancer belongs to a special type of gastric cancer, this subtype of gastric cancer has a higher chance of peritoneal metastasis and peritoneal recurrence, therefore, even if early stage patients are able to undergo radical surgery, they are still prone to local recurrence and distant metastasis after the surgery, and the resection rate of radical surgery is relatively low in many patients. Most of the patients with Borrmann type 4 gastric cancer have already progressed at the time of diagnosis, and the higher recurrence and metastasis rate and lower resection rate of radical surgery generally make it more difficult for these gastric cancer patients to achieve a cure, and the patients often suffer from recurrent peritoneal metastasis or recurrence, which leads to uncontrollable disease and rapid progression of the disease, resulting in the death of the patients.