The invention provides a wire traction device, and belongs to the technical field of power transmission line construction. The wire traction device comprises a fixed part, a traction part, an adjustment assembly, a diversion end and a clamping assembly, wherein the fixed part is arranged on a line pole, the traction part is arranged at an end part of the wire, the adjustment assembly comprises a sleeve and a positioning part, the sleeve is used for connecting the fixed part and the traction part, the distance can be adjusted, the diversion end is arranged on the adjustment assembly and is usedfor leading out a current, the clamping assembly and the adjustment assembly are coaxially arranged, and the wire can be clamped. In the wire traction device provided by the invention, the fixed partand the traction part can be locked by the positioning part, the tension degree of the wire is controlled and a wire error is adjusted by the sleeve, the wire error is further adjusted, the clampingassembly is good in clamping effect and is difficult to loose, a wire clamping effect is good, and the overhead construction efficiency is improved.