The utility model provides a switch viewing device and system relates to electrical equipment technical field, and this switch viewing device includes casing, display screen and video switch, the display screen sets up the surface at the casing, and display screen and video switch's output interface connection, video switch include a plurality of demonstrations switch the button and with show a plurality of signal input interfaces that switch the button one -to -one, each show to switch the button and all sets up the surface at the casing, and the signal input interface is used for the cameraconnection with the observation position department that lays at the target switch. The user can select the signal source of certain camera through video switch like this, then looks over the switch state image of the target switch of this camera shooting through the display screen to swift judge conveniently that whether this switch deciliter targets in place, therefore improved observation disconnecting link position's convenience, reduced safe risk, thereby improved work efficiency and user experience.