In　order　to　research　the　seismic　performance　of　strengthening　corroded　RC　circular　columns　with　hybrid　Fiber　Reinforced　Polymer　(FRP)　sheets,　ten　RC　columns　were　tested　under　cyclic　load　and　constant　axial.　Test　phenomena　are　described,　experimental　data　are　analyzed　and　compared,　and　the　effect　of　the　axial　compression　ratio　and　stirrup　reinforcement　ratio　on　the　seismic　behavior　is　studied.　Results　show　that　the　corrosion　of　steel　bars　may　introduce　the　brittle　failure　for　RC　columns　in　some　extent,　and　the　seismic　performance　can　be　enhanced　effectively　for　RC　columns　strengthened　with　hybrid　FRP.　Ductility　and　energy　dissipation　are　improved　significantly,　but　the　bearing　capacity　can　be　only　increased　within　limits.　When　the　degree　of　rebar　corrosion　is　5.1%,　the　maximum　displacement　ductility　factor　and　accumulated　energy　dissipation　of　the　strengthened　corroded　columns　are　123%　and　12.5　times　larger　respectively　than　that　of　the　un-strengthened　corroded　columns.