A plate-type wet electrostatic precipitator was designed and built to research the particle capture characteristic under atomization of charged water drop. The effects of electric field intensity, residence time, dust concentration, and liquid flow rate on removal efficiency were acquired. Results showed that particle grade penetration ratio with charged droplets was higher than the dry ESP. As the electric field intensity increased, reduction of penetration ratio and outlet concentration firstly increased and then decreased with the division of 3.5kV/cm, at which the outlet PM_0.5, PM₁ and PM_2.5 decreased by 28.7%, 28.0% and 27.1% respectively. Longer residence time resulted in higher removal efficiency under the same applied voltage, the penetration ratio for PM_0.5, PM₁ and PM_2.5 reduced by 50.2%, 49.3% and 48.5% when the residence time increased from 2.14s to 4.04s at 4kV/cm. Particle collision and agglomeration could be reinforced as the increase of dust concentration, thus the removal efficiency increased correspondingly. While the electron density was insufficient for particle charge, further enhancement of dust density led to decrease of removal efficiency. Improving the water flow rate was benefit for particle charge, agglomeration, and increase of removal efficiency. Compared with the traditional wet electrostatic precipitator (WESP), adoption of charged dropletscould largely reduce the water consumption and keepthe collection efficiency at relatively high level.