The invention relates to an automatic continuous feeder for PVC (Polyvinyl Chloride) pipe processing. The automatic continuous feeder comprises a bottom plate, a mounting rack, a connecting bracket, afeeding device, a push device and a grinder, wherein the mounting rack is arranged on the bottom plate; the connecting bracket is arranged at the lower end of the mounting rack; the side wall of theconnecting bracket is connected with the feeding device; the push device is arranged at the lower end of the feeding device; the grinder is arranged at the lower end of the push device; the feeding device, the push device and the grinder are all arranged on the bottom plate; and the feeding device comprises a support frame, a rotary gear ring, a rotating gear, a mounting bracket, a rotating motor,a cone column, a rotary gear, a driven gear, a feeding shaft, a feeding rack, a connecting rack and a feed box. According to the automatic continuous feeder disclosed by the invention, the problems existing in the conventional PVC pipe recovering and grinding process that manual continuous feeding is needed, potential safety hazards exist, the grinding difficulty is high, the grinding effect is poor and the like can be solved, and the continuous feeding function in the PVC pipe grinding process can be realized.