Automatic transformer shifting device

An automatic transformer shifting device includes a transformer body, wherein the shifting end of the transformer body is connected to a voltage regulating switch. The automatic transformer shifting device is characterized in that the outer side of the transformer body is connected with a fixing plate; the fixing plate is connected with a horizontal adjusting device; and the horizontal adjusting device includes a guide rod. The horizontal adjusting device of the invention can facilitate the horizontal sliding of a gearbox, so that when the voltage regulating switch is not required to rotate toremove an oxide layer, a square pipe and a square are disengaged by sliding a sliding pipe, thereby preventing structures such as the gearbox and the square pipe from interfering with manually rotating the voltage regulating switch. When the oxide layer of a tap is required to be taken out, the sliding pipe can be pushed to slide, so that the square pipe and the square are mated. Thus, a user canrotate a rotary handle to