The invention provides a novel local reinforced insulation type transposed conducting wire, which can not influence the heat radiation effect of the transposed conducting wire under the condition of meeting the local reinforced insulation requirements of the transposed conducting wire. The sudden short circuit resistance capability of a winding coil is ensured, so the safety of an electric transformer is ensured. The novel local reinforced insulation type transposed conducting wire comprises a transposed wire core, wherein a paper insulation layer is covered and wound outside the transposed wire core, and the paper insulation layer comprises an outer insulation layer and an inner insulation layer. The invention is characterized in that a middle insulation layer is covered and wound on thelocal insulation reinforced part of the upper part in the height direction of the transposed wire core and between the outer insulation layer and the inner insulation layer.