The function principle of ultrasonic vibrating screen is adding an ultrasonic energy transform device on the screen surface of 3-D vibro separator and filter. This device can make the screen surface superpose ultrahigh frequency vibrational energy, so that it can keep clear of the mesh and achieve the ideal screen situation. Ultrasonic vibrating screen is usually used in screening superfine powder which the ordinary vibrating screen can not solved. Wooden case, container, as customers demands.