The intestinal and gastrointestinal functions have not fully recovered two weeks after rectal cancer surgery, so it is recommended that the diet should be mainly fluid food, semi-liquid food and soft food. If the recovery situation is good in the early stage after rectal cancer surgery, patients can eat gradually under doctor’s advice. It is recommended that patients should eat mainly liquid food, such as milk, millet porridge, rice soup, etc. When the condition of patients is stable, they can eat semi-liquid food under doctor’s advice. When the patient’s condition recovers and stabilizes, he/she can consume semi-liquid food, such as wontons, thin rice, noodles and so on, under the doctor’s advice. If the patient’s recovery is better in the later stage, the diet can usually be transitioned to soft food in the later stage, such as bread, rice, steamed buns and so on. It is recommended that the patient’s diet should be light, easy to digest, high fiber-based, and do not eat spicy, greasy, stimulating food. It is recommended that patients should closely observe their own recovery, dietary precautions, should be based on the condition of consulting the competent doctor’s opinion, if there are other adverse reactions, but also should immediately go to the hospital.