Ultrasonic vibrating screen is to convert 220V, 50Hz or 110V, 60Hz electric energy into 38kHz high-frequency electric energy, input ultrasonic transducer and turn it into 38kHz mechanical vibration, so as to achieve the purpose of efficient screening and screen cleaning. On the basis of the traditional vibrating screen, the system introduces a low amplitude and high-frequency ultrasonic vibration wave (mechanical wave) into the screen and superimposes a high-frequency and low amplitude ultrasonic vibrator on the screen. The ultra-fine powder receives huge ultrasonic acceleration to keep the materials on the screen suspended all the time, so as to inhibit the factors of adhesion, friction, leveling and blocking the screen. It solves the screening problems of strong adsorption, easy agglomeration, high static electricity, high precision, high density and light specific gravity, so that the screening of ultra-fine powder is no longer difficult. It is especially suitable for users of high-quality and fine powder