Fiber　reinforced　polymer/plastic　(FRP)　being　relatively　watertight　and　airtight　can　resist　corroding.　This　paper　researches　the　resistance　to　corrosion　of　reinforced　concrete　structure　retrofitted　with　FRP.　The　differences　of　anticorrosion　performances　between　FRP　and　two　common　anticorrosion　materials　(silicon　alkyl　and　Sika903)　are　compared.　The　influence　on　the　anticorrosion　performances　of　reinforced　concrete　structure　retrofitted　with　different　types　of　FRP　and　the　epoxy　is　analyzed.　Results　show　that　the　rust-resisting　materials　used　in　this　test　have　different　anticorrosion　performances.　The　theoretical　corrosion　rates　of　specimens　wrapped　with　CFRP,　BFRP　and　PEFRP　are　14%,　23.6%　and　17.2%　of　the　control　specimens.　The　theoretical　corrosion　rate　of　specimens　protected　by　silicon　alkyl　is　22.5%　of　the　control　specimens,　and　there　is　little　difference　in　theoretical　corrosion　rates　between　the　specimens　protected　by　silicon　alkyl　and　the　wrapped　Frps.　Anticorrosion　performances　of　specimens　protected　by　Sika903　is　slightly　inferior　to　that　of　other　rust-resisting　materials　used　in　this　test,　and　the　theoretical　corrosion　rate　is　44.3%　of　the　control　specimens.　Specimens　protected　by　epoxy　alone　also　show　excellent　anticorrosion　performance.　The　theoretical　corrosion　rate　is　20.7%　of　the　control　specimens.