The invention discloses a waste wire stripping device, and belongs the technical field of recovery devices of waste materials. The waste wire stripping device comprises a paying-off mechanism, a paring mechanism, a tension automatic adjustment mechanism, a peeling mechanism and a wire core winding mechanism, wherein the paring mechanism is arranged on one side of the tension automatic adjustment mechanism, the peeling mechanism is located between the tension automatic adjustment mechanism and the wire core winding mechanism, the paring mechanism comprises a fixed plate, a paring knife fixing base supporting arm, a paring knife fixing base, a paring knife and a guiding wheel, the fixed plate is fixed with one side of the tension automatic adjustment mechanism, a wire passing hole is formed in the fixed plate, the paring knife fixing base supporting arm is fixed with one side of the fixed plate, a wire passing groove is formed in one side of the paring knife fixing base, two ends of the paring knife are respectively provided with a paring knife adjustment groove, the guiding wheel is arranged on a guiding wheel shaft, the guiding wheel shaft is fixed on a guiding wheel shaft base, and the guiding wheel shaft base is fixed on the paring knife fixing base supporting arm. The waste wire stripping device is ideal in stripping effect, free of damage to the guiding wheel caused by friction, long in service life and low in knife cost, and ensures a paring effect.