Slot structure and portable electronic device

The invention provides a slot structure and a portable electronic device. The slot structure comprises a shell, a switch, a linkage piece, a first clamping hook, a gear, a rotating arm and a second clamping hook. The switch is exposed and is movably arranged on the shell along a first direction or a second direction. The linkage piece is located in the shell and linked with the switch, and the linkage piece is provided with a rack. The first clamping hook is exposed out of the shell and is in linkage with the linkage piece. The gear is located in the shell and meshed with the rack. The rotating arm is located in the shell and one end is pivoted to the gear. And the second clamping hook is exposed out of the shell and is linked to the other end of the rotary arm. When the switch moves in the first direction, the linkage piece correspondingly moves in the first direction to drive the first clamping hook to move in the first direction, the gear rotates along with movement of the rack of the linkage piece, the ro