If childhood acute lymphoblastic leukemia is detected early and treated aggressively, it is usually better treated, and the cure rate in China has now reached 80%. However, the difficulty of treatment and treatment effect vary in different groups, for example, the low-risk and intermediate-risk groups will have better treatment effect compared with the high-risk group. If you suspect that acute lymphoblastic leukemia exists in children, you should go to the hematology department of a regular hospital for a targeted examination, and actively cooperate with the treatment according to the examination results to achieve better treatment results.1. Low- and intermediate-risk groups: children with acute lymphoblastic leukemia usually have an acute onset and are more sensitive to chemotherapy drugs. The cure rate can reach 80% after induction therapy, intensive consolidation therapy and maintenance therapy. Commonly used induction chemotherapy drugs include vincristine, cyclophosphamide, prednisone, and menadione. High-dose cytarabine and methotrexate can be used for consolidation therapy, and mercaptopurine and methotrexate can be used for maintenance therapy. To prevent CNS leukemia, intramyelinating drugs are required. Most children can achieve cure after regular and active treatment; 2. High-risk group: Even if disease remission is achieved by chemotherapy, relapse may occur. Hematopoietic stem cell transplantation should be performed as early as possible after induction therapy and complete remission of symptoms in order to achieve a cure. In daily life, it is important to avoid exposing children to harmful chemicals, ionizing radiation, etc. and to avoid being in a contaminated environment to avoid causing leukemia.