Asparaginase injection, the indication is that this product is suitable for acute lymphoblastic leukemia (ALL). This patient needs L-asparaginase for treatment. If he is allergic to natural L-asparaginase, he can try this product. Generally, this product is used in combination with other chemotherapy drugs, such as vincristine, methotrexate, cytarabine, daunorubicin and adriamycin. This product can only be used alone if it is confirmed that multiple chemotherapy drugs are not suitable. The curative effect of this product has been proved to be similar to that of natural L-asparaginase. Patients with severe allergic reaction to natural L-asparaginase can also tolerate this product. The product was also evaluated in non-Hodgkin's lymphoma and acute myeloid leukemia. However, it is not a designated indication at present.