An electronic device proofed against unintended consequences when a button is depressed is provided. The electronic device includes a case, a movable pad rotatably received in the case, and a button body movably attached to the case and above the movable pad. The movable pad includes at least one switch arranged thereon. The button body includes at least one protruding post corresponding to the at least one switch and facing to the movable pad. The electronic device further includes a driving member slidably connected to the case and connected to the movable pad, sliding the driving member in one direction effectively isolates the movable pad from the button body, and sliding it in the reverse direction restores the connection.