Abstract: To produce the high-quality clean steel, this paper systematically combs the relevant research results on the behavior regulation of non-metallic inclusions in molten steel by electric field. The three core mechanisms of electric field regulation were elaborated, namely the interfacial electric double layer theory, the electromagnetic repulsion mechanism and the electric free energy driving mechanism, and the different effects of each mechanism on the migration direction of inclusions were clarified. The regulation effects of electric field on typical inclusions such as Al2O3 and MnS were analyzed from five dimensions: quantity, size, morphology, distribution and interfacial characteristics. It is confirmed that reasonable optimization of electric field parameters can achieve efficient removal, refinement, morphological spheroidization and directional distribution of inclusions, and regulate the interfacial tension, wetting angle and interfacial reaction between molten steel and inclusions as well as refractory materials. The application status and remarkable effects of this technology in inhibiting submerged entry nozzle (SEN) clogging (aluminum-killed steel, rare earth steel) and improving the mechanical and corrosion resistance of steel in industry were summarized. At the same time, the current research gaps were pointed out, such as the failure to establish an accurate parameter matching model and the lack of real-time adaptive capacity of electric field parameters. Furthermore, the future research directions were put forward, including establishing a quantitative adaptation model, developing an intelligent optimization system and researching real-time observation technology. This study provides theoretical reference and practical guidance for the further development and engineering application of electric field regulation technology in the production of high-quality steel.