The Ultrasonic transducer is one of the important components in the ultrasonic cleaning machine and the ultrasonic vibrating plate, which determines the effect of the ultrasonic wave to a great extent. The Ultrasonic transducer is a device that converts high-frequency electrical energy into mechanical vibration. The high-frequency electrical energy input by an ultrasonic generator matches the resonant frequency of the piezoelectric Ultrasonic transducer, the piezoelectric effect of the material transforms electrical energy into mechanical vibration, that is, ultrasonic vibration, which is transmitted through the Ultrasonic transducer to the water medium, forming negative-pressure bubbles and shock waves in the water and transmitting in the tax-based solution, to achieve the effect of cleaning the surface of the workpiece stains. The transducer is mainly composed of aluminum block, piezoelectric ceramic plate and insulating layer.