The longest survival period of cachectic patients varies from 3-6 months, all of which are caused by the continuous consumption of advanced malignant tumors, and patients will have obvious anemia and hypoproteinemia. In addition, the continuous consumption of tumor will also lead to the failure of related organ functions, because the proliferation and metabolism of tumor cells are very vigorous and exponentially growing, so the consumption of human nutrition is especially obvious. The appearance of successive organ insufficiency will increase the death rate of patients, each organ failure will increase the death rate up to 25%, and the low immunity of human body in the later stage will also easily complicate the infection, and even respiratory failure and heart failure, all of which are a sequential disease process. Therefore, for patients with advanced tumor, anti-infection treatment can also be given if the condition allows, while peripheral intravenous supplementation of human albumin or plasma can prolong life to a certain extent.