1.Supplementation of high-calorie food. Due to the abnormal proliferation of white blood cells, fever and infection, and extensive bleeding in leukemia patients, a large amount of heat is consumed, thus a high-calorie diet should be supplemented with no less than 1,500 to 1,800 calories per day and no less than 300 grams of sugar per day. 2. Adequate amount of protein. Protein consumption and decomposition in the body of leukemia patients is greatly increased, the intake of adequate high-protein food to ensure the body’s tissue growth and repair needs. Protein foods are legumes, including a variety of soy products, eggs, fish, lean meat, poultry, nuts, etc., and also includes dairy products, such as fresh milk, skim milk, milk powder, cheese, condensed milk, cheese, cream of wheat, etc. 3.Rich in vitamins. Provide adequate amount of vitamin C and vitamin B food to leukemia patients to improve the body’s resistance and prevent excessive bleeding. Vegetables and fruits are rich in vitamins, but be sure to consume fresh products to ensure the supply of vitamins and minerals needed by the body. If necessary, vitamins can be added to food for consumption. 4. Adequate amount of water and electrolytes. For patients with fever and less food, sufficient water and electrolytes (iron, sodium, potassium, calcium, magnesium, etc.) should be supplemented to maintain water and electrolyte balance. In addition to the water in food, at least 2000-3000ml of water should be added daily. milk, vegetable soup, fruit, juice, drinks, egg soup, broth, etc. can be given, adding the right amount of vitamins, sugar, salt and other condiments to enhance appetite. 5.Eat blood tonic and hemostatic products. The common symptoms of leukemia are anemia and bleeding, so it is necessary to increase the consumption of “blood” and “hemostatic” diet to improve and reduce the symptoms. For example, turtle gum, aconite, turtle soup, turtle soup, bone soup, fish scale gum, yam porridge, etc. 6. Ask the patient to forbid eating foods with bones and hard shells. When eating fish, pay attention to the fish spines to avoid stabbing the oral mucosa and gums, causing bleeding and infection. According to the patient’s taste, appetite and absorption and digestion function, cook and make the liquid, semi-liquid, soft food and snacks that are rich in nutrition and easy to digest, in order to enhance appetite and nutrition.