Colon cancer with lymphatic metastasis generally cannot be cured, but it can be treated by general treatment, surgery, radiotherapy and chemotherapy to prolong the survival period. 1. General treatment: patients should pay attention to balanced diet, eat more nutritious food, which is conducive to the recovery of the disease, and keep regular bowel habits to ensure smooth bowel movement. 2. Surgery: the main treatment of colon cancer is surgical resection, which can be treated by radical surgery, extensive peritoneal implantation, distant organ metastasis, etc. can be treated by palliative surgery. 3. Radiotherapy: it is mainly to destroy the physiological function of tumor cells through radiation irradiation, so as to kill tumor cells. 4. Chemotherapy: this way is to kill tumor cells through chemical drugs, commonly used drugs are 5-fluorouracil, oxaliplatin, formyl tetrahydrofolate and so on. It is suggested that patients should consult the doctor for treatment in time and strictly follow the doctor’s prescription.