An electronic device including a casing, a circuit board, a bracket, an antenna, and a protective member is provided. The casing has an accommodating space and a hole communicating with the accommodating space. The circuit board is disposed in the accommodating space. The bracket is disposed above the circuit board, and at least part of the bracket is located in the accommodating space and the hole. At least part of the antenna is disposed on a portion of the bracket extending out of the accommodating space. The protective member is disposed on at least one surface of the casing and covers the hole, the bracket, and the antenna.