With stage IV colon cancer, the 5-year survival rate is around 10%, which means 10% of patients can live 5 years or even more overall. Stage IV colon cancer is an advanced tumor, mainly with distant metastasis, such as liver metastasis and lung metastasis. At the same time, the tumor stage itself is more advanced, the tumor is larger, the infiltration depth is deeper, it may invade the plasma membrane or invade out of the plasma membrane, and there may be multiple metastases in the peri-intestinal lymph nodes, such as more than 4 lymph nodes metastases or more than 7 lymph nodes metastases. For the treatment of stage IV colon cancer, chemotherapy or radiotherapy or chemotherapy is the main treatment. If intestinal obstruction occurs, emergency surgery should be performed to release the intestinal obstruction. If the tumor is resectable and palliative resection is possible, the tumor can also be removed to improve the patient’s quality of life.