Malnutrition is common in cancer patients. Due to the rapid growth and metabolic activity of tumors themselves the body requires more energy and nutrients and some treatment methods such as surgery radiation therapy and chemotherapy can further increase the metabolic burden. Intestinal obstruction can be found in gastrointestinal malignancies patients. Patients' intake is further restricted and the incidence of malnutrition increases. Malnutrition can reduce physical function increase the risk of infection and complications and harder postoperative recovery. Surgical treatment in cases of overall functional decline caused by malnutrition will further increase the mortality rate of patients. At present surgical treatment is the main treatment option for patients with cancerous ileus. However malnutrition will increase the postoperative mortality of these patients. Therefore improving the nutritional status of patients has become the key point in the treatment of patients with cancerous intestinal obstruction. Damage control surgery combined with enteral nutrition is more suitable for improving the nutritional status of patients with cancerous intestinal obstruction. Intestinal obstruction can be solved via decompression tubes or self-expanding metal stents under gastrointestinal endoscopy to open nutritional access improve the nutritional status of patients build a bridge between radical surgery within a limited period and improve the prognosis of patients.