The utility model belongs to the electric power field, concretely relates to electric power is automated tool case for operation. Including dolly and toolbox, the dolly includes base and handrail, the handrail passes through the connecting rod and is connected with the base, the inside cavity of connecting rod, the lower extreme of handrail is located inside the connecting rod, vertically set up a plurality of locating holes on the wall of connecting rod, be equipped with positioning button on the handrail outer wall, the base lower part is equipped with four universal wheels, the fixed rotating electrical machines of hydraulic pressure elevating gear is passed through on base upper portion, the fixed rotation axis in rotating electrical machines upper end, the fixed toolbox that sets up in rotation axis upper end, set up the pocket on the wall in the toolbox outside, handrail one side sets up the light. The utility model discloses it is convenient to remove, and the height and the direction in toolbox can all be adjusted at will, takes a ten minutes convenience of knocking off, the great condition in the more toolbox of the instrument that is applicable to.