The survival of patients with acute lymphoblastic leukemia is related to age, risk stratification of the disease, and should be analyzed on a problem-specific basis. Most patients with childhood acute lymphoblastic leukemia have a better prognosis, and with the continuous improvement of chemotherapy regimens and advances in chemotherapeutic drugs, the 5-year survival rate for childhood acute lymphoblastic leukemia reaches more than 90% after achieving complete remission with regular, standardized chemotherapy and with active consolidation and maintenance therapy. Most adults with acute lymphoblastic leukemia can achieve complete remission after induction chemotherapy, but long-term survival is only about 40% at 3-5 years, and the prognosis is even worse if assessed as high-risk at the time of presentation. With a suitable donor, early hematopoietic stem cell transplantation is required. Patients with leukemia have low resistance and should eat a diet that is easy to digest and hygienic, avoiding fruits that are not easily cleaned when immunity is low to avoid infection.