ATG can treat aplastic anemia. ATG is anti-thymocyte globulin, which is a kind of immunosuppressant, and it is mainly applied to patients with aplastic anemia in clinic. The treatment of ATG has better efficacy and weaker toxic adverse effects, and it has an important role in the treatment of severe remittent anemia in the clinic. Aplastic anemia is mainly due to bone marrow hematopoietic failure caused by the reduction of whole blood cells triggered by anemia, in addition to ATG treatment, the clinical use of cyclosporine and androgens such as stanozolol, androgens have a direct or indirect stimulation of erythrocyte hematopoiesis function. All of the above drugs should be used under the guidance of a physician, avoid self-medication. Patients with aplastic anemia are advised to choose the best treatment option under medical supervision.