The present invention relates to a pharmaceutical composition for preventing or treating nervous system disorders, which contains sulfuretin or a pharmaceutically acceptable salt thereof, and a method of using the composition to prevent or treat nervous system disorders. Moreover, the present invention relates to a functional food composition for alleviating nervous system disorders, which contains sulfuretin or a pharmaceutically acceptable salt thereof. The pharmaceutical composition and the functional food composition can be effectively used to prevent or treat degenerative brain disorders caused by a variety of cerebral nervous system abnormalities in persons, as well as depressive disorder and anxiety.본 발명은 설퍼레틴(Sulfuretin) 또는 약학적으로 허용되는 이의 염을 포함하는, 신경계 질환 예방 및 치료용 약학 조성물에 관한 것이다. 또한, 본 발명은 설퍼레틴 또는 약학적으로 허용되는 이의 염을 포함하는, 신경계 질환 개선용 기능성 식품 조성물에 관한 것이다.