The　process　of　convective　heat　transfer　enhancement　of　a　heated　plate　by　corona　wind　is　investigated　with　the　commercial　code　COMSOL　Multiphysics.　The　convective　heat　transfer　phenomenon　of　the　air　under　high　voltage　electric　field　is　studied,　and　the　distribution　of　the　flow　field　and　the　temperature　field　for　the　line-plat　model　are　obtained.　The　numerical　method　is　verified　to　be　reliable　by　comparing　with　the　experimental　results.　It　is　found　that　corona　wind　in　enhancing　heat　transfer　possess　obvious　advantages　than　traditional　way　by　studying　the　heat　transfer　coefficient　under　the　action　of　traditional　fan,　corona　wind　and　the　combine　of　corona　wind　and　traditional　fan.　In　addition,　the　change　laws　of　convective　heat　transfer　coefficient　in　different　polar-plate　distances,　plate　length　ratios　and　plate　lengths　are　also　considered.