The incidence of colorectal cancer, or colorectal cancer, has been increasing year by year in recent years. As surgery is the first treatment option for colorectal cancer, its postoperative diet is also one of the focuses of clinical patients’ attention. Colorectal cancer is routinely fasted for 2-3 days after surgery, and patients rely on intravenous supplementation for the nutrition and energy they need at this time. After the recovery of gastrointestinal function and anal discharge, patients can eat liquid food, i.e. dilute soup, and choose foods with high nutritional value, such as rice soup, vegetable soup, broth, enteral nutrition powder or liquid preparation. You can choose to eat less and more meals, and eat every 3-4 hours. If you have nausea, vomiting and other reactions, you need to reduce the amount of food or even fasting. When eating a liquid diet for a short period of time after surgery, be careful not to eat legumes or dairy products because such foods can cause abdominal distension and other discomforts and slow down the recovery of intestinal function. If there is no obvious discomfort, that is, 5-7 days after surgery, you can eat semi-liquid. At this time, you can choose foods with high protein, low fat and low fiber, such as lean meat soup, noodles, wontons, thin rice, etc. Pay attention to whether there is obvious discomfort such as vomiting after eating, and also need to eat less and more meals, eat in a semi-recumbent or sitting position, not too fast, chew slowly. After eating semi-liquid, if there is no obvious discomfort, then in about ten days after surgery, you can eat dregs-free or less dregs universal food, it is appropriate to choose high protein, low fat food, such as lean meat, fish, eggs, nutritional powder, etc.. At this time, it is not advisable to choose high-fiber foods, such as celery and coarse grains, to reduce the burden on the gastrointestinal tract. Patients after about one month after surgery, if the post-operative recovery is smooth, the general diet is allowed. Note: 1, a balanced diet, more vitamin and fiber content and easy to digest food, such as fruits and vegetables, beans, cereals, coarse grains, etc.; 2, a balanced diet, food as diverse as possible, meat and vegetables, coarse and fine, reasonable use of tonic, such as red dates, ginseng, etc.; 3, reasonable nutrition, more high protein, multivitamin, low animal fat, easy to digest food and fresh fruits and vegetables 4, pay attention to vitamin supplementation, and can appropriately eat more fresh fruits. Of course, because the length and function of the large intestine are affected after surgery, there are also dietary contraindications after intestinal cancer surgery. Avoid cold and spicy food, such as ice cream, cold food, chili, pepper and fried food; 2. Avoid pickled and smoked food, such as cured meat, pickled vegetables, bacon, barbecue and other food; 3. Avoid eating hard-to-digest food, such as persimmon, fried food, dried fruit, walnuts, glutinous rice, etc.; 4. Avoid stimulation of tobacco and alcohol, especially strong alcohol; 5. To sum up, it is advisable to choose foods with high protein, high fiber, low fat and easy to digest after intestinal cancer surgery, try to have rich and diversified kinds of food to avoid single, pay attention to vitamin supplementation, eat fresh fruits and vegetables in moderation, and do not be partial or picky. Of course, some patients like tonic and Chinese medicine, etc., note that the consumption of such foods need to consult the relevant experts. Take Chinese herbal medicine to a regular hospital and follow the advice of experts, and pay attention to the toxic side effects of Chinese medicine. During the postoperative recovery process, if you experience any uncomfortable symptoms such as loss of appetite, nausea, vomiting, abdominal pain, diarrhea, change in bowel habits, etc., please go to a regular hospital department in a timely manner. In addition to diet, maintaining a relaxed and happy mood and good eating habits are also extremely necessary for postoperative recovery of intestinal cancer.