The present invention relates to a composition for suppressing differentiation of an osteoblast and an osteoclast and a pharmaceutical composition for preventing or treating bone diseases. The composition comprises a compound represented by a following chemical formula 1 to have an effect of suppressing osteoblast differentiation and osteoclast differentiation, thereby having excellent pharmacological effects and health functionalities for preventing and treating bone diseases such as periodontitis and the like.본 발명은 특정 화합물을 포함함으로써, 조골 세포 분화를 억제할 뿐만 아니라 파골 세포 분화 또한 억제하는 효과를 가져, 치주염 등을 포함하는 골질환에 대한 우수한 약효 및 건강기능성을 나타낼 수 있는 조성물에 관한 것이다.
