The invention discloses a distributor of a screwing machine. The distributor of the screwing machine comprises a distributing base; a slidable distributing slide block is arranged on the distributing base and is driven by a distributing cylinder; a screw rod fixing hole is formed in the distributing slide block; a main positioning groove for a screw suction nozzle is formed in the position, located at the outer side of the screw rod fixing hole, of the top wall of the distributing slide block; an auxiliary positioning groove is formed in the side wall, adjacent to the main positioning groove, of the distributing base; a slide block elastic piece which elastically floats up and down is arranged in the auxiliary positioning groove; and a screw feed inlet is further formed in the side wall of the distributing base. The distributor of the screwing machine has the beneficial effects that due to the facts that the main positioning groove and the auxiliary positioning groove used for accurately positioning the screw suction nozzle are arranged and the elastically floating slide block elastic piece is arranged in the auxiliary positioning groove, the side wall of the distributing base is still in a plane overall, and movement of screws is not affected; and meanwhile, when descending, the screw suction nozzle can abut against the slide block elastic piece and forces the slide block elastic piece to sink, and therefore, an intact conical groove is formed for accurately positioning the screw suction nozzle.