The invention relates to the technical field of mechanical equipment, in particular to lathe feeding and discharging auxiliary equipment. A left X shaft and a right X shaft are symmetrically arranged on the left and right sides of a rack platform. A left material fetching Z shaft and a right material fetching Z shaft are respectively arranged on the outer sides of the left X shaft and the right X shaft in a perpendicular direction. The rear of the left X shaft is connected with the left material fetching Z shaft through a reinforcing block, and the rear of the right X shaft is connected with the right material fetching Z shaft through a reinforcing block. The lower end of the left material fetching Z shaft is connected with a left material fetching manipulator through an upper plate, and the lower end of the right material fetching Z shaft is connected with a right material fetching manipulator through the upper plate. A left simulation table, a finished product conveying table, a turning platform, a right simulation platform and a material conveying table are sequentially arranged below the rack from left to right, an electric control cabinet is arranged on the left side of the rack, and the left simulation table, the finished product conveying table, the turning platform, the right simulation platform, the material conveying table and the electric control cabinet are all independently arranged. The device can accurately and rapidly convey round materials onto a lathe chuck to be processed, so that labor is reduced, and events caused by operation errors are avoided.