Hematology drug therapy is very critical, but a reasonable diet is also important. An unreasonable diet may affect the patient’s recovery and even the effect of drug therapy. Many patients with blood disorders have blood cell reduction, such as aplastic anemia, myelodysplastic syndrome, leukemia or other malignant blood disorders after chemotherapy bone marrow suppression period, the body resistance is poor, prone to infection and fever, it is appropriate to eat fruits, vegetables, vitamin supplements, and high protein diet such as lean meat, eggs, milk, etc., and should pay attention to dietary hygiene, so as not to cause abdominal pain, diarrhea and aggravate the condition. Platelet reduction is prone to bleeding, diet should be loose and easy to digest food, because hard, irritating food is more likely to induce bleeding in the mouth, gums, and even the gastrointestinal tract, vitamin C-rich food can stabilize the blood vessel wall, reduce its permeability and brittleness, and reduce the occurrence of bleeding. Xie Xinsheng, Department of Hematology, First Affiliated Hospital of Zhengzhou University Patients with paroxysmal sleep hemoglobinuria should not eat acidic fruits. Lotus white, cabbage, radish, tomato, Chinese cabbage, lotus vegetable, eggplant, winter melon, cucumber, yam, lily, tofu, celery, etc., contain many vitamins. Apples, pears, bananas, tangerines, oranges, strawberries, watermelons, melons, pomegranates, soft persimmons, etc., contain iron, zinc, aluminum, potassium, etc. Large meat, ribs, eel, snapper, beef with fresh, moderate consumption Tonic can eat some flat tonic food such as dates, cinnamon garden, raw peanuts, red beans, black beans, black sesame, black rice, purple rice.