The　influence　of　boron　concentration　on　corrosion　resistance　of　high　boron　white　cast　iron　dipped　into　a　pure　liquid　zinc　bath　at　460　degrees　C　was　investigated.　The　results　reveal　that　high　boron　white　cast　iron　containing　3.5　wt.%B　exhibits　excellent　corrosion　resistance　due　to　the　dense　continuous　netlike　or　parallel　Fe2B　phase　which　hinders　the　Fe/Zn　interface　reaction.　The　corrosion　rate　decreases　significantly　when　the　boron　concentration　increases,　but　the　corrosion　rate　declines　slightly　when　the　boron　concentration　exceeds　3.5wt.%.　EDS　results　indicate　the　coarse　and　compact　delta　phase　generated　near　the　matrix　and　a　large　amount　of　massive　and　blocky　zeta　phase　occurred　close　to　the　liquid　zinc.　The　corrosion　process　includes　Fe/Zn　interface　reaction　and　the　spalling　and　fracture　of　Fe2B.　The　failure　of　Fe2B　is　mainly　caused　by　the　microcrack　of　phase　transformation.