The invention discloses an electric tool kit for shifting gears of an MR tap switch of a converter transformer. The electric tool kit comprises two forms: one form is composed of a tap switch gear-shifting handle, a bushing and an electric wrench, wherein the tap switch gear-shifting handle is connected to one end of the bushing while the other end of the bushing is connected to the electric wrench; and the other form is composed of a tap switch gear-shifting handle, a bushing, a connecting selector bar and an impact drill, wherein the tap switch gear-shifting handle is connected to one end ofthe bushing, the other end of the bushing is connected to one end of the connecting selector bar, and the other end of the connecting selector bar is connected to the impact drill. The electric toolkit solves the problem that it is time-consuming and low in efficiency of shifting the gears manually when the MR tap switch of the converter transformer is not connected to a power supply, shifts gears of the converter transformer quickly and efficiently, is time- and labor-saving, and improves the efficiency.