Inner　hybrid　fiber　reinforced　plastics　(IHFRP)　sheets　fabricated　by　PA,　PET,　and　PPTA　intermixing　are　adopted.　Based　on　the　experiment　of　concrete　circular　and　quadrate　columns　confined　by　IHFRP　under　axial　compression,　failure　configuration,　stress-strain　curve,　bearing　capacity,　peak　strain,　elastic　modulus,　and　ductility　of　such　concrete　columns　are　analyzed.　Compared　with　the　specimen　without　IHFRP,　the　bearing　capacity　and　peak　strain　of　the　speciments　with　three　or　four　layers　of　IHFRP　are　improved,　respectively;　With　equal　layers　of　fiber,　the　bearing　capacity　and　peak　strain　of　circular　columns　are　higher　than　those　of　quadrate　columns.　With　increasing　radius　at　the　corners　augmenting,　the　bearing　capacity　and　the　peak　strain　of　quadrate　columns　are　improved　at　different　levels.　The　ductility　of　concrete　columns　confined　by　IHFRP　is　estimated　with　the　toughness　index,　which　is　figured　with　an　area　ratio　of　the　load-compression　strain.　The　I20　of　the　confined　columns　is　high,　which　indicates　that　there　is　excellent　ductility　at　the　latter　reacting　stage　of　concrete　columns　confined　by　IHFRP,　and　frame　is　better　for　seismic　energy　dissipation.