Objectives : The trunk-bark and the root of A. elata were compared with each other in terms of their anti-oxidative activities. Methods : Using the trunk-bark and the root of A. elata, their anti-oxidative activities were examined through the in vitro and in vivo experiments. Results : The trunk-bark of A. elata in vitro had weaker anti-oxidative activities than its root. However, the trunk-bark of A. elata in vivo had stronger anti-oxidative activities than the root in the rats which was oxidatively stressed by alcohol. Conclusion : These results suggested that the trunk-bark of A. elata was also useful as a medicine.