In order to further study the adaptation and efficiency - enhancing features of different electronic control technologies to wet electric field, the wet electrostatic precipitator (WESP) experimental system is established. The results show that, due to the strong anti - interference ability, constant current source is more suitable for wet electric field power supply of WESP. High frequency power supply can provide higher power parameters, and the corresponding wet electric field has higher removal performance for wet filed pollutants. Under such 3 working conditions as high, medium and low concentration of dust at the inlet of WESP, the removal efficiency of wet electric field powered by fundamental frequency power supply to dust and PM?.? are 70.33%, 68.38%, 67.92% and 61.07%, 59.77%, 58.97%, respectively. The one of high frequency power supply are 77.99%, 76.92%, 75.47% and 70.23%, 70.11%, 69.23%, respectively. After the transformation of a sintering project in Shandong province by a WESP with high frequency and high voltage constant current source, the dust emission is only 4.5 mg/m³ with significant reduction effect. This research can provide references for the ultra - low emission transformation of sintering flue gas and dust.