A　total　of　six　specimens　were　tested　to　investigate　the　performance　of　circular　concrete　columns　reinforced　by　BFRP-PVC　tubes　under　uniaxial　loading.　The　main　parameters　varied　in　the　tests　were　the　strengthening　ratio　and　the　strip　spacing　of　BFRP.　The　performance,　such　as　failure　modes,　stress-strain　curves　and　ultimate　bearing　capacity,　is　studied　in　details.　The　results　show　that　this　kind　of　confined　columns　obviously　improves　the　ultimate　bearing　capacity　and　ductility,　and　the　formula　proposed　is　applicable　and　efficient　for　the　ultimate　bearing　capacity.