Owing to the numerous advantages of ESR steel products, such as uniform composition, dense microstructure, finely dispersed inclusions, and superior mechanical properties, ESR is extensively employed in the production of various high-end special steels and special alloys. The control of process parameters in ESR plays a critical role in determining the quality of steel ingots, while the rational selection of these parameters serves as an essential prerequisite for achieving high-quality ingots. In practice, there exists a certain degree of coupling and interdependence among the various process parameters of ESR. While individual process parameters can influence the stability of the ESR process and the quality of the steel, their variation is also constrained by other parameters within the system. Ultimately, the stability of the ESR process and the quality of the steel rely on the coordinated interaction of all process parameters within the system.