The invention belongs to the technical field of packaged product processing, and particularly relates to an auxiliary device with a buffer shunt-winding function for a textile spool paper slitting machine of a paper angle bead production line. The auxiliary device consists of two buffer ramp racks and a reduction baffle plate, wherein the reduction baffle plate is blocked on the buffer ramp racks;each buffer ramp rack consists of a bracket and a first inclined beam and a second inclined beam which are symmetrically arranged on the bracket, wherein the bracket consists of a first bottom beam,a second bottom beam, a vertical beam, a first small vertical beam, a second small vertical beam and a plurality of beams which are symmetrically arranged, the vertical beam, the first small verticalbeam and the second small vertical beam are vertically and fixedly arranged on the bottom beams, the second bottom beam is fixedly arranged on the vertical beam and the first small vertical beam, andthe beams are transversely connected onto the first bottom beam and the second bottom beam. The auxiliary device has the advantages of being scientific and reasonable in structural design, being firmand strong, being great in bearing capacity, being capable of gradually slowing down rolling speed of a paper slip roll and capable of automatically separating, saving time and labor, being high in safety, being convenient to assemble, and the like, and has relatively high innovation.