The invention discloses a vibrating screen with a scum self-cleaning function. The vibrating screen comprises a barrel, a vibrating motor, a filter screen A and a filter screen holder. A dust cover on the top of the barrel is provided with a feeding port, and the bottom end of the barrel is fixedly provided with a base plate of which the bottom end is fixedly connected to a base through a spring; the vibrating motor is fixed to the inner wall of the bottom end of the barrel through a mounting ring, and the right and left ends of the base are provided with a servo motor and a counterweight block separately; the filter screen holder is fixed to a rotating shaft, and the filter screen A is fixed to the filter screen holder; and a filter screen B at the lower end of the filter screen holder is fixedly connected to the inner wall of the barrel. According to the vibrating screen disclosed by the invention, the rotating shaft is driven to rotate by the servo motor, and the filter screen holder is fixed to the rotating shaft, so that the filter screen A is rotated along with a main shaft; when the device is vibrated, scum also moves up and down so as to be collected by the rotating filter screen A; in this way, the collection of the scum is finished, and the treatment of the scum is not required; and the working efficiency is improved.