Power supply pole automatic conversion wiring device

The utility model relates to a power supply pole automatic conversion wiring device which comprises an external connecting mechanism and a power supply pole converting mechanism, wherein the external connecting mechanism comprises a plurality of first leads which are fixedly connected, a clamp and a second independent lead which is arranged among the first leads and separated and insulated from the first leads; one end of the second lead is welded on the clamp, and the other end is connected with the power supply pole converting mechanism; the power supply pole converting mechanism comprises a relay assembly and a pole selecting assembly; the relay assembly comprises a replay group, and the relay group comprises two opposite relays; the pole selecting assembly comprises an optical coupler group, and the optical coupler group comprises a plurality of optical couplers; the optical coupler group is connected with the replay group by the leads; and the external connecting mechanism is connected with the power sup