Cancer patients consume a lot after surgery, due to the loss of appetite, nutritional intake is often inadequate, at the same time, the blow to the body from surgery, chemotherapy or radiotherapy makes the patient’s physical condition deteriorate. Reasonable dietary principles are: 1. High protein, protein-rich food: such as lean meat, eggs, beans, dairy, and various essential amino acids to maintain the balance of amino acids in the body can inhibit the development of cancer. 2.High calorie: Post-operative esophageal cancer patients have difficulty in eating due to poor appetite, so they should eat more lipids and sweets that can be easily digested and absorbed, such as honey, cane sugar, vegetable oil and cream, etc. 3.High vitamin: foods rich in vitamin A, C, E, K, folic acid, such as fresh vegetables, fruits, animal liver, etc. 4.Rich in trace elements: such as shiitake mushroom, kelp, nori, egg yolk, pumpkin, cabbage, animal’s liver and kidney, ginseng, wolfberry, yam, reishi, etc. The minerals they contain, such as selenium and molybdenum, have anti-cancer effects.