The treatment time for acute leukemia type b is variable and needs to be judged in relation to the severity of the disease, with low and intermediate risk patients being treated for about 2 years, and high risk patients being treated for about 2 and a half years. According to the severity of the disease, this disease can be mainly divided into low-risk, intermediate-risk and high-risk three kinds of conditions, different patients, the specific treatment time will be different. 1. Generally speaking, the main treatment for low-risk and intermediate-risk patients is drug-induced therapy, in which several different drugs can be used at the same time, such as methotrexate, sodium 6-mercaptopurine sulfonate, vinblastine, cyclophosphamide, etc. The duration of the treatment is about 28 days. After the consolidation treatment is completed, most of the patients will gradually enter the maintenance treatment phase, and the total course of treatment is about 2 years. 2. However, if the patient belongs to the high-risk group, it is difficult to improve the condition with basic medication, and the patient needs to be treated with hematopoietic stem cell transplantation to control the progression of the disease, and the total course of treatment will take about two and a half years. Patients should go to the hospital in time for examination and have a full understanding of the condition, so as to better help the doctor to formulate a suitable treatment plan. During the course of treatment, patients should strictly cooperate with the doctor’s arrangements and maintain an optimistic mindset to avoid aggravation of the condition.