Abstract: A keyboard structure including a base, a key-cap, and a linking-up mechanism is provided. The key-cap is disposed on the base, and the linking-up mechanism is connected between the base and the key-cap. The linking-up mechanism includes a first frame and a second frame. The first frame is connected to the key-cap. The first frame has two openings and two guide slots on two opposite sides, and the openings are connected to the guide slots correspondingly. The second frame is pivoted to the base, and the first frame is pivoted to the second frame crosswise. The second frame has two pivotal arms and two open slots on two opposite sides. Each pivotal arm has a fixing protrusion pivoted in the opening.