Acute Lymphoblastic Leukemia (ALL) is a malignant neoplastic disease that originates from B-cell or T-cell lymphocytes and proliferates abnormally in the bone marrow. In recent years, immunotherapy has made significant strides in the field of ALL, including breakthroughs in treatments such as Chimeric Antigen Receptor T-cell (CAR-T) therapy, bispecific antibodies, and antibody-drug conjugates (ADC). The 50th European Society for Blood and Marrow Transplantation (EBMT) annual meeting took place in Glasgow, UK, from April 14 to 17, 2024. At the conference, Professor Peter Bader from the Department of Stem Cell Transplantation, Immunology, and Intensive Care Medicine at the University Hospital Frankfurt, Germany, delivered a special report on the current application of CAR-T therapy in ALL patients. Hematology Frontier invited Professor Bader to share the latest progress and challenges in CAR-T therapy in the field of ALL with a wide audience.