The treatment of both acute and chronic leukemia includes the treatment of complications such as controlling infections, correcting anemia, preventing bleeding, etc., chemotherapy such as imatinib mesylate, etc., radiotherapy, hematopoietic stem cell transplantation, etc., which should be carried out in accordance with the doctor’s instructions. 1. Treatment of complications (1) Control infection such as ciprofloxacin, compound sulfamethoxazole, vancomycin, cefoperazone, itraconazole, etc. There are dizziness, headache, urticaria, itching and other adverse reactions. (2) Correction of anemia can be infused with red blood cell suspension, and low platelets can be infused with platelets. (3) Prevention and treatment of bleeding can be given phenolsulfonyl ethylamine, Yunnan Baiyao and other drugs, or transfusion of platelets. (4) Correct hyperuricemia such as allopurinol, etc., there are hives, diarrhea and other adverse reactions. 2. Chemotherapy: such as prednisone, methotrexate, imatinib mesylate, dasatinib, nilotinib, interferon, hydroxyurea, etc., with common adverse reactions such as edema, fatigue, anemia and headache. 3. Radiotherapy: systemic irradiation, local irradiation, etc. It can be used for chemotherapy-resistant patients and patients with extremely enlarged spleen. 4. Hematopoietic stem cell transplantation: after pre-treatment of patients with radiotherapy, chemotherapy and immunosuppressant, normal donor or autologous hematopoietic stem cells will be infused into patients to rebuild normal hematopoietic and immune functions. Diagnosed leukemia should be treated promptly to avoid delay. Drugs need to be used under the guidance of a doctor.