A switch assembly includes a panel defining a receiving portion. The receiving portion includes two opposite first sidewalls, two opposite second sidewalls, and a bottom wall connected between the first sidewalls. A switch member is attached to the panel. An actuating member is accommodated in and engaged with the second sidewalls of the receiving portion. The actuating member includes a pressing plate. Two guiding walls extend from two opposite first sides of the pressing plate, and two elastic hooks protruding from two opposite second sides of the pressing plate. A spring member is disposed between the pressing plate of the actuating member and the bottom wall of the receiving portion, to provide resilient force to expose the actuating member outside of the panel.