The utility model discloses an electric overhaul equipment device, including base, maintenance frame, locking device, safety protection mechanism, locking device sets up on the base, locks the base onpower equipment's channel -section steel framework through this locking device, it including setting up the chassis on the base and setting up the grudging post on the chassis, is provided with insulation work platform and cat ladder to overhaul the frame on the chassis, safety protection mechanism includes rail guard, buffer and link, and the rail guard is to seal describes to the rotation is connected in the grudging post top, and this rail guard can overturn to be located directly over the work platform or the upset to leaning on to the grudging post side, the grudging post top is providedwith the connecting rod, and this connecting rod is passed to the buffer bottom, and connects the link. The utility model discloses not only can improve work efficiency, reduce the high altitude construction risk, can help the reliable maintenance of maintainer, experiment again, reduce the equipment power off time.