The utility model relates to a welding equipment field, concretely relates to wire drive feed unit. A wire drive feed unit, includes the frame, be equipped with locating piece, slider, wire feed rollsand hold -down mechanism in the frame, be equipped with the recess on the slider, the locating piece is worn to establish the recess and is extended outside it, what the frame was kept away from to the locating piece is equipped with the apron on the surface, the wire feed rolls sets up on the output shaft of motor, and just the interior concave part with the fixed block matees, hold -down mechanism includes slider, pinch roller, pressure adjusting lever and pressure spring, the pressure adjusting lever sets up on the slider, and its tip sets up in the locating hole of locating piece, the cover is equipped with the spring on the pressure adjusting lever, the pinch roller sets up in the cavity on the slider, the pinch roller with the wire feed rolls corresponds, and the welding wire clampis located between wire feed rolls and the pinch roller, still is equipped with into a ware and a play silk ware on the upper and lower lateral wall of cavity. The utility model provides a send the wire drive feed unit that silk stability is good, production efficiency is high, the suitability is good.