An engaging structure for an electronic device includes a first substrate, an engaging member, and a fixed reinforcing member. The first substrate defines at least one guiding slot. The engaging member includes at least one first latching protrusion extending therefrom. The at least one first protrusion engages in the at least one guiding slot. The fixed reinforcing member includes at least one abutting block extending therefrom. The at least one abutting block is configured for abutting against the at least one first latching protrusion.