An electronic device is provided. The electronic device includes a supporting member, a case, at least two positioning structures, a guiding structure, and a protrusion. The two positioning structures are respectively disposed on the supporting member and the case, and are configured to facilitate assembly of the case and the supporting member. The guiding structure is disposed on the supporting member. The protrusion is disposed on the case. The protrusion is guided by the guiding structure so as to simplify the assembly process and improve the efficiency of assembly.