The　anti-fouling　experiments　using　high　voltage　electrostatic　field　for　heat　transfer　enhancement　were　carried　out　with　the　dynamic　fouling　test　facility.　The　results　indicated　that,　for　the　case　of　treatment　with　high　voltage　electrostatic　field,　the　deposits　on　the　heat　transfer　surface　mitigated,　and　the　fouling　thermal　resistance　decreased　extraordinarily　with　a　scale　inhibition　rate　of　56.5%.　SEM　showed　that　the　crystal　shape　of　the　CaCO3　changed　from　a　compact　aragonite　structure　for　no　treatment　case　to　a　incompact　indefinite　structure　for　treatment　case.　And　thus,　it　was　difficult　for　the　scale　to　form　on　the　heat　transfer　surface.