After surgery for colorectal cancer, it takes about two weeks after surgery to return to a normal diet. How and what to eat during these two weeks will determine the level of recovery of the patient. There are still some controversial issues regarding the post-operative diet for colorectal cancer patients, but early return to normal nutritionally balanced oral diet is the principle of post-operative diet. Due to the high cost of hospitalization and care in western countries, and the modern concept of rapid recovery surgery, patients are advised to eat liquid food through the mouth on the first day after surgery, and can eat meat with a lunch box in three days. After three days they can be discharged home for home treatment in a way that is unthinkable and even somewhat cruel in our country. The reason is that people’s home medical care is very well done, and recovery at home will not only cost much less, but also patients are less stressed psychologically, which is more conducive to post-operative recovery. The recovery of postoperative diet should follow the principle of gradual progress. Generally, liquid food can be eaten after exhaustion. The order of liquid food is usually to try to drink water first (3-5 spoons at a time, 3-5 times per hour), if there is no discomfort in drinking water, congratulations you can try to drink rice soup at the next meal (3-5 spoons at a time, 3-5 times per hour), if rice soup also does not bring discomfort, the next meal can add egg custard, or nutritious soup, and then gradually transition to a normal diet. The normal diet after surgery should follow: 1, to fit the mouth of the diet; 2, to work with a nutritionist to develop a nutritious meal in line with their own, nutrition should be balanced, not the more expensive things are better; 3, according to the digestive situation gradually change their eating habits; 4, to eat more coarse grains and fiber-rich food; 5, as little as possible to eat animal fat and meat food and food with filling; 6, try not to eat glutinous rice and dead noodles staple food.