A portable electronic apparatus includes a structural member, a sound member, a circuit board, and a frame. The structural member has an opening and an accommodating recess. The sound member is accommodated in the accommodating recess, and has a top surface, a bottom surface, and a sound outlet. The sound outlet is located at the top surface. The circuit board cover plates the opening and has a first through hole corresponding to the sound outlet. The circuit board is disposed between the frame and the structural member. The frame has a second through hole corresponding to the sound outlet. The sound member is electrically connected to the circuit board. The sound outlet is communicated with the first and second through holes.