Diarrhea in advanced stage of colon cancer is related to the tumor itself and the treatment method, and there is no radical cure. Patients can first take antidiarrheal drugs for symptomatic treatment to reduce diarrhea symptoms and prevent water-electrolyte disorders in the body. In addition, TCM treatment has a certain effect on improving diarrhea symptoms and immunity of colon cancer patients. The treatment method of Chinese medicine is evidence-based, and from the cause and mechanism of the disease, it can be used to promote Yang, consolidate and tonify the body, improve the symptoms of dampness and spleen deficiency, and use Chinese medicine formulas with the effects of strengthening the spleen, tonifying the spleen and kidney, draining the liver and Qi, or clearing the intestines and resolving dampness. It can also be supplemented with acupuncture and dietary therapy to stop diarrhea. Patients with advanced colon cancer should mainly take easy-to-digest diet. Patients with advanced colon cancer have long-term fever, sweating and damage body fluid, so it is appropriate to drink more water or soup. The main food can be semi-liquid diet such as porridge and noodles. Patients mostly have symptoms of loss of appetite, nausea and even vomiting, so it is advisable to take in a light diet and avoid eating oily, spicy and other stimulating foods. You can take nutritious herbal medicines, such as red ginseng, wolfberry and jujube, etc. to regulate.