A buckle assembly and an electronic device using the same are provided. The buckle assembly is adapted to be assembled on a housing of the electronic device. The housing has an inner surface and a first hole. The buckle assembly includes an assembly element, a slider, and an abutting member. The assembly element is assembled in the first hole along a first direction; the slider is disposed on the inner surface of the housing and is capable of moving relative to the housing along a second direction to lock or unlock the assembly element, wherein the second direction is perpendicular to the first direction; and the abutting member is disposed on the inner surface of the housing and is used to abut against the slider when the slider locks the assembly element.