Abstract: Ultrasonic power has special physical and chemical effects, so it has great application potential in the field of metallurgy. This paper reviews the research progress of power ultrasound in the simulation of hydrometallurgy and pyrometallurgy, and focuses on the mechanism of power ultrasound in strengthening mass transfer, removing impurities and improving metal solidification structure. In the process of hydrometallurgy, ultrasonic cavitation and micro-flow can strengthen the speed of metal leaching, improve the uniformity of electrodeposition, and greatly improve the efficiency of mass transfer. In the process of pyrometallurgy, ultrasonic wave can improve the flow field of molten steel, so as to promote the aggregation and floating of inclusions in molten steel. At the same time, it can refine the grain structure in the process of solidification of molten steel, and finally achieve the purpose of improving the properties of metals. Numerical simulation has become an important means to study the mechanism of ultrasonic strengthening. It can be used to analyze the distribution of ultrasonic sound field, the characteristics of multi-field coupling dynamics, and the evolution of microstructure, which provides theoretical support for the optimization of actual metallurgical process.