A keyboard device includes an upper housing, a conductive membrane, a key top including a bottom surface and an actuator disposed on the bottom surface, a lower housing and a soft elastic element located on the conductive membrane, wherein the actuator penetrates the upper housing, and the soft elastic element has an engaging part to engage with the key top such that the key top is prevented from being separated from the soft elastic element when the key top rebounds.

A keyboard device is disclosed, which includes an upper housing, a conductive membrane, a key top including a bottom surface and an actuator disposed on the bottom surface, a lower housing and a soft elastic element located on the conductive membrane, wherein the actuator penetrates the upper housing, and the soft elastic element has an engaging part to engage with the key top such that the key top is prevented from being separated from the soft elastic element when the key top rebounds.