A light-emitting safe buckle is disclosed. The buckle includes, a light-emitting device, and a male buckle and a female buckle made of a transparent or translucent material, the light-emitting device being disposed on an intermediate setting portion of the male buckle. The male buckle and the female buckle are both made of a transparent or translucent material, such that light emitted by the light-emitting device can be quickly conducted and diffused to the whole structure.