The five-year survival rate of patients with liver metastases occurring in stage IV colon cancer is about 10% after active treatment. Colon cancer is a malignant tumor caused by heredity, bad dietary habits and other factors. When the disease develops to the late stage, it is usually accompanied by distant metastasis, such as liver metastasis. At this time, if the metastatic lesions are limited and the patient can tolerate surgery, surgical resection is feasible, followed by radiotherapy, chemotherapy, targeted therapy and other therapies. In addition, if the patient can tolerate the treatment well, the survival rate can be improved to a certain extent. The purpose of treatment for stage IV tumors is to improve the quality of life and prolong the survival period.