The Ginkgo biloba extract (EGb761) is mainly used to improve the function of peripheral circulation. In recent years, some literatures report that it can strengthen the cognitive function and remove the free radical from body after taking it for a long time. The main purpose of this experiment is to study the learning obstacle of mouse induced by Scopolamine after taking Ginkgo biloba extract for two weeks. The result show that the Ginkgo biloba extract can improve the learning obstacle of mouse induced by Scopolamine, which means the Ginkgo biloba extract can improve the learning memory of mouse.