A portable electronic device comprising a device body, a first linking member and a supporting member is provided. The first linking member includes a first end and a second end. The first end is rotatably connected to the device body. The supporting member is pivotally connected to the second end. The supporting member moves relative to the device body via the first linking member, the first linking member rotates relative to the device body via the first end, and then the second end moves close to or out from the device body.