The invention relates to an electric wire straightening device. The device comprises a base, a carrying assembly arranged at the upper end of the base, a stand column arranged at the upper end of thecarrying assembly, a fixing component arranged at the upper end of the stand column, and a control box arranged on the side face of the fixing component. The carrying assembly comprises a carrying frame, a plurality of straightening columns arranged at the upper end of the carrying frame, and a straightening frame arranged at the upper end of the carrying frame. The carrying frame is of a cuboid shape and is made of stainless steel, the carrying frame is fixed to the upper surface of the base through bolts, a plurality of disc-shaped sleeve plates connected through bearings are arranged on theupper surface of the carrying frame, a plurality of sleeve rods connected through welding are arranged on the upper surface of each sleeve plate, the sleeve rods are sleeved with the straightening columns, the straightening columns and the sleeve rods are in screwed connection through threads, and the number of the sleeve rods and the number of the straightening columns are kept consistent.