It is not possible to generalize about how many times acute lymphoblastic leukemia is cured by chemotherapy, and some patients cannot be cured by chemotherapy alone. Generally speaking, the course of chemotherapy for most acute lymphoblastic leukemias is about 8 sessions. Chemotherapy for acute lymphoblastic leukemia is generally divided into three phases, namely induction of remission, consolidation and maintenance. Induction of remission is usually 1~2 courses of treatment, consolidation and intensification is 4~6 courses of treatment, and the final maintenance treatment is usually around 2 years. However, in general, although chemotherapy can control and alleviate the condition, it still has the possibility of relapse. Hematopoietic stem cell transplantation is an effective way of curing acute lymphoblastic leukemia, and generally for patients who are suitable for transplantation, they can receive the transplantation under the guidance of their doctors. When suffering from acute lymphoblastic leukemia, it is recommended to seek timely medical treatment and choose the appropriate treatment plan under the guidance of doctors.