Abstract: 　Objective　To explore the clinical feature, treatment and prognosis of hepatitis associated aplastic anemia (HAAA) in children. Method　The clinical data of 5 children with HAAA were retrospectively analyzed. Results　There were 5 patients (4 males and 1 female) with median age of 10 years (7~13 years ). The detection of hepatitis A, B, C, and E were all negative in these 5 children during their acute hepatitis period. In 2 children, parvovirus B19 antibody and EB virus were negative and the proportion of CD4+T cells and the ratio of CD4+/CD8+ were decreased, and the proportion of CD8+T cells was increased by T-lymphocyte subsets analysis. Three children were treated with anti-thymocyte globulin combined with cyclosporine, 2 of whom achieved complete remission and 1 died of pulmonary fungal infection. One child was treated with cyclosporine only and achieved partial remission. One child lost follow-up after giving up treatment. Conclusion　HAAA in children can be caused by viral seronegative hepatitis, and usually has T lymphocyte immune disorders.  Immunosuppressive therapy is effective.