In　order　to　research　the　decreasing　problem　of　bearing　capacity　for　structure　members　by　chloride-induced　steel　corrosion,　the　flexural　performances　of　RC　corroded　beams　strengthened　with　AFRP　sheets　under　different　ratio　of　corrosion　(light-corroded:　reinforcement　mass　loss　is　2%,　moderate-corroded:　reinforcement　mass　loss　5.5%)　are　investigated　experimentally　in　this　paper,　and　compared　with　that　of　un-corroded　beams　and　un-strengthened　corroded　beams.　The　results　show　that,　compared　with　un-strengthened　corroded　beams　under　same　ratio　of　corrosion,　the　cracking　load,　yield　load　and　ultimate　load　of　RC　light　corroded　beam　strengthened　with　AFRP　sheets　is　respectively　increased　by　20%,　27%　and　60%,　and　increased　by　15%,　36%　and　83%　for　RC　moderate　corroded　beam　strengthened　with　AFRP　sheets　respectively;　the　ultimate　deflection　of　the　moderate　corroded　beam　strengthened　with　FRP　is　larger　than　that　of　corroded　un-strengthened　beam　166%.　AFRP　sheet　can　improve　significantly　the　bearing　capacity　and　deformation　for　RC　corroded　beams.