In order to meet the visualization requirements of the cavitation field distribution in the ultrasonic cavitation reactor. a method based on the numerical simulation of the amplitude of sound pressure is proposed. In order to verify that the amplitude of sound pressure plays a decisive role in cavitation effect. the dynamic equation of a single cavitation bubble is established. https://www.roneverhart.com/AMS-Neve-1073SPX-Single-Preamp-and-EQ-p33827/