1. A switch structure of an electronic device, comprising: a circuit board including a sidewall; a plurality of conductive portions formed on the sidewall; and a movable unit including at least a conducting part and moving between a first position and a second position, wherein when the conducting part of the movable unit is at the first position, the plurality of conductive portions are electrically insulated from each other; when the conducting part of the movable unit is at the second position, at least two of the plurality of conductive portions are electrically connected via the conducting part.