Colon cancer is a malignant tumor occurring in the intestine, which is relatively serious in itself, but colon cancer stage 2 is relatively less serious in terms of the whole course of the disease. Clinically, colon cancer is classified into stage 0-4 according to its severity, and the greater the stage, the more serious the disease is. Colon cancer stage 2 means that the cancer cells have invaded the muscle layer of the intestinal wall, but no lymph node metastasis and distant metastasis have been found yet, and the clinical manifestations of patients are not serious, which can be manifested as symptoms such as abdominal pain and diarrhea. As long as the diagnosis is confirmed through timely examination, radical colon cancer surgery can be performed to remove all the intestinal tubes. After surgery, the treatment can be combined with radiotherapy, chemotherapy and targeted therapy, which can reduce the chance of recurrence after surgery and prolong the survival time of patients.