Colon cancer surgery about diet is divided into near-term diet and long-term diet after surgery, as follows: 1, general fasting after colon cancer surgery often lasts at least 3 days, and after 3 days, it can be carried out without residue liquid food to improve the nutritional quantity; 2, generally after 5-7 days, under the premise of safety of entering liquid food, it can be gradually carried out to semi-liquid food, and generally semi-liquid food is carried out for 3 days, which is also more safe, and the patient passes bowel movement and has no abdominal distension, If the patient has bowel movement, no abdominal pain or bowel obstruction, ordinary diet can be carried out slowly. 3. Diet after colon cancer surgery should provide high energy and high protein content diet. After colon cancer surgery, patients need to undergo certain adjuvant chemotherapy, and adjuvant chemotherapy is also consuming to the body, so it is necessary to pay attention to nutritional support after surgery and eat nutritious diet with high protein content.