Embodiments of present disclosure provide a switch panel assembly comprising: a cover including a body and an first opening formed on the body; and a first button received in the first opening and switchable between a first position and a second position; the first button being coplanar with the cover while in the first position and being non-coplanar with the cover while in the second position. The first button of the switch panel assembly according to embodiments of the present disclosure is coplanar with the cover in one of the on or off status, which leads to a better appearance of the switch assembly.