The invention relates to a vibratory spiral polisher. A vibrating grid is connected on the upper side of a frame through springs, a feed device is connected on the upper side of the vibrating grid, a vibrating machine is fixedly connected on the lower side of the vibrating grid, a feed inlet is arranged on the upper side of the feed device, a screw propulsion device is mounted in the feed device, a part machining space is formed between the feed device and the screw propulsion device, one end of the screw propulsion device is in rigid connection with a speed reducer and a feed motor, the other end of the screw propulsion device is connected with a supporting seat, a left port of the feed device is connected with the speed reducer and the feed motor in a floating manner, and a discharge port is arranged below a right port of the feed device. By the vibratory spiral polisher, time spent on part polishing can be reduced, continuous conveying of parts can be achieved, and production efficiency is improved greatly. By the aid of the continuous conveying process, the vibratory spiral polisher can be connected into an assembly line to achieve an assembly line operation mode of part forming, polishing and finish machining. Besides, a feeding and discharging mode is improved, inertial impact is alleviated, machining steps are decreased, and time spent on polishing is greatly decreased.