Abdominal heat perfusion chemotherapy is very effective for middle and late stage abdominal tumors. Its advantages are mainly reflected in the following points: 1. The growth of tumor cells is effectively inhibited through abdominal heat perfusion chemotherapeutic drugs with heat circulation of 42℃-45℃. Because there is a peritoneal barrier in our abdominal cavity, through thermal circulation to change the osmotic pressure and permeability of the cells, so that the chemotherapeutic drugs can effectively enter the cells, and play the role of killing cancer cells; 2. The absorption pathway of the abdominal thermal circulation in our abdominal cavity is mainly to enter the liver through the portal vein, the metastatic pathway of our abdominal tumors is mainly to pass through the portal vein, and then through the liver and then to the whole body metastasis. The absorption and circulation pathway of intraperitoneal heat infusion chemotherapy is also this pathway, so it can effectively prevent tumor metastasis and is a better treatment means.