To screen and clean efficiently, this ultrasonic vibrating screen can convert the electric energy of 220V, 50Hz to the high frequency electric energy of 110V, 60Hz, and import the high frequency electric energy into the ultrasonic converter to convert it to the mechanical vibration of 18 KHz. In this way, the screening of super-fine powder can be easier. On the basis of traditional vibrating screen, there is an additional ultrasonic vibrating wave (mechanical wave) of low amplitude and high frequency on the screening net. The wave can improve the screening performance of super—fine powder, so this type of screen is especially appropriate for fine powder with high added value.