Objective To investigate the clinical efficacy of traditional Chinese medicine (TCM) method of tonifying marrow and nourishing essence combined with cyclosporine A in the treatment of aplastic anemia (AA)， and its effects on bone marrow hematopoiesis， immune function and quality of life. Methods A total of 65 patients with AA admitted from July 2014 to January 2024 were randomly divided into control group (21 cases)， TCM group (23 cases) and comprehensive group (21 cases). The control group was treated with oral cyclosporine A; the TCM group was additionally given Tonifying Marrow and Nourishing Essence Decoction; the comprehensive group was further combined with governor vessel moxibustion， moxibustion and ear acupuncture on the basis of the TCM group. All patients were treated for 24 weeks. The clinical efficacy， blood routine， immune indexes， quality of life and adverse reactions were observed. Results The total effective rates of the control group， TCM group and comprehensive group were 76.19%， 86.96% and 85.71%， respectively. The TCM group and comprehensive group were significantly higher than the control group (P<0.05). After treatment， red blood cells， hemoglobin and platelets in the three groups were increased compared with those before treatment (P<0.05)， the levels of IL?2 were decreased， and CD3?， CD4? and CD4?/CD8? were increased. The improvements in the TCM group and comprehensive group were better than those in the control group (P<0.05). The quality of life score of the comprehensive group was the best， and there was no significant difference in the incidence of adverse reactions among the three groups (P>0.05). Conclusion TCM method of tonifying marrow and nourishing essence combined with cyclosporine A can effectively improve the clinical efficacy of AA， ameliorate bone marrow hematopoiesis and immune function， and improve quality of life with good safety， which is worthy of clinical promotion.