In　order　to　investigate　the　strengthening　effects　of　aramid　fiber　reinforced　polymer　(AFRP)　sheets　on　the　flexural　performance　of　the　corroded　beams,　the　flexural　behaviors　of　corroded　RC　beams　strengthened　with　AFRP　sheets　under　different　degrees　of　corrosion　(minor:　reinforcement　mass　loss　is　2.0%,　medium:　reinforcement　mass　loss　is　6.0%)　are　researched　experimentally　in　this　paper,　and　compared　with　that　of　the　control　beams　(un-corroded)　and　un-strengthened　corroded　beams.　The　results　show　that,　compared　with　un-strengthened　corroded　beams　under　same　degrees　of　corrosion,　the　cracking　load,　yield　load　and　ultimate　load　of　minor　corroded　RC　beam　strengthened　with　AFRP　sheets　is　respectively　increased　by　20%,　27%　and　60%,　and　increased　by　15%,　36%　and　83%　for　medium　corroded　RC　beam　strengthened　with　AFRP　sheets　respectively;　The　ultimate　deflection　of　the　medium　corroded　beam　strengthened　with　AFRP　sheets　is　166%　larger　than　that　of　corroded　un-strengthened　beam.　AFRP　sheets　can　improve　significantly　the　bearing　capacity　and　deformation　for　corroded　RC　beams.