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　PM0.5,　PM1　and　PM2.5　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　PM0.5,　PM1　and　PM2.5　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.　©　2020,　Editorial　Board　of　China　Environmental　Science.　All　right　reserved.