The utility model relates to a multi -functional electric power overhauls uses insulating bar. Its technical scheme is: being equipped with at the left end of insulating brake pullrod head and overhauing the mechanism, have the looping -in piece at the lower extreme of insulating brake pullrod head through fastening bolt fixed mounting, fixed mounting has an electroscope on the looping -in piece, the pullover joint of maintenance mechanism in the one end of ratchet shaft, be equipped with spacing circular bead at the other end of ratchet shaft, be equipped with the bearing respectively at ratchet shaft and ratchet seat complex both ends, be equipped with sealed lid, external screw thread fixedly connected with connector in the other end of ratchet seat passes through matched with in the one end of ratchet seat. The beneficial effects are that: together, save upper and lower climbing through the electroscope and the combination of operating a switch, reduced intensity of labour, avoided high altitude construction's risk, adopt ratchet increase moment, so the wrong dynamics of tearing the nut open of increase, make the operator still can easily dismantle and install electric elements remote, convenient and practical has improved work efficiency greatly.