Clinical colon cancer stage I, II, III and IV will generally be divided into stage 0~IV according to the degree of colon cancer invasion, local lymph node metastasis and distant metastasis. 1.0~Stage I: the primary tumor is more limited, occurring only in the intramucosal or submucosal layer, without lymph node metastasis and distant metastasis. 2. Stage II: the primary tumor in this stage can invade to the muscular layer of the intestinal wall, but there is still no lymph node metastasis and distant metastasis. 3. Stage III: in this stage, the depth of invasion of the primary tumor is variable, and there are mostly regional lymph node metastasis, but no distant metastasis. 4. Stage IV: in this case, the tumor can be transferred to organs such as liver, lung, brain, bone and so on, and abdominal implantation metastasis can also occur. And patients may also have distant lymph node metastasis such as supraclavicular lymph node metastasis. Patients with colon cancer in any of the above stages need timely intervention and systematic treatment in strict compliance with doctor’s prescription, so as to control and stabilize the condition as early as possible and prolong the survival time of patients.