The invention relates to a wire tractor which comprises a bearing rod, a link plate hook and a stabilizing hook, wherein the front end of the bearing rod is connected with the link plate hook; the link plate hook can rotate with a connection point as a center; the middle of the bearing rod is fixedly connected with the stabilizing hook; a working hole is formed in the tail end of the bearing rod; the link plate hook and the bearing rod are hinged; the link plate hook comprises a connecting piece and a U-shaped hook; and the stabilizing hook comprises a connecting piece and a semi-circular hook. The wire tractor is provided with the bearing rod, the link plate hook capable of rotating freely is mounted at the front end of the bearing rod, the fixed stabilizing hook for stabilizing an insulator string is mounted in the middle of the bearing rod, and the working hole for being connected with a stringing steel wire rope is formed in the tail end of the bearing rod, so that when a worker tightens and removes wires of a triangular duplex link plate for a 660 kV composite wire, the worker can stand on a cross arm and operate the wire tractor, the operation safety is high, the operation is simple and convenient, and the pertinence of the application range is high.