Cancer itself is a consumptive disease, coupled with the surgery that hurts the vital energy, radiotherapy induces gastrointestinal reactions such as loss of appetite, vomiting and diarrhea, which seriously affects the absorption and utilization of nutrients, resulting in the decline of the patient’s resting quality, emaciation, and even malignant disease. At this time, protecting patients’ spleen and stomach function is the key, and dietary regulation plays an extremely important role in patients’ recovery. Diet of cancer patients should pay attention to the following points: 1. Identify the symptoms and administer food according to different diseases. For example, tonic products should be used for deficiency cases, evil products should be used for solid cases, warm and dispersing products should be used for cold cases, and clearing and draining products should be used for hot cases. Yang deficiency should eat hot food, such as lychee, beef, dog meat, etc.; Yin deficiency should eat nourishing yin clearing products, such as lily, fungus, etc.; do not distinguish between cold and heat deficiency, all the barbaric, difficult to achieve the purpose of helping the patient to recover. Such as turtle is a cool tonic, cold stomach is not suitable; eel is warm tonic, suitable for cold stomach. 2, the diet should be adapted to the four seasons of the climate. The four seasons of climate alternation, human beings must comply with the laws of nature and can not be contrary. Spring and summer Yang Qi is strong, everything is full of vitality, should eat as little as possible dog meat, mutton and other warm products; autumn is dry, everything is depressed, the patient is often dry mouth, should eat as little as possible cold food in order to prevent injury to the stomach, it is desirable to enter the warm tonic products, such as oranges, beef, lamb and so on. 3, according to different treatment diet. Radiotherapy patients due to radiation therapy, internal heat and yin deficiency, common dry mouth and throat pain, mucosal ulcers, etc., should be supplemented to nourish yin and promote the production of fluids, such as fresh vegetables, fruits, avoid eating spicy and irritating food. After surgery, the patient is greatly injured, digestion and absorption function decline, should take care of the spleen and stomach as the key, can not just throw a tonic, more congee, soup, easy to digest food. Chemotherapy patients with evidence of deficiency of blood and qi, it is appropriate to enter the beneficial blood products, such as American ginseng, astragalus, wolfberry and other medicinal diets, in order to restore physical strength for the next cycle of chemotherapy to create the conditions to ensure the smooth progress of chemotherapy. 4, pay attention to dietary contraindications. Such as traditional Chinese medicine has eighteen anti, nineteen fear, taking tonic, generally should not eat more radish; persimmon taboo crab; onion taboo honey; turtle fish taboo amaranth and so on.