In　the　three　kinds　of　constraint　ratio　(xi　=　0.065,　xi　=　0.1025,　xi　=　0.205),　respectively,　by　the　comparative　analysis　of　55　prism　specimens　using　CFRP　confined　concrete(strain　ratses　are　10(-5/s-1),　10(-4/s-1),　10(-3/s-1)　and　10(-2/s-1)),　the　stress-strain　curves,　strength,　strain,　elastic　modulus　and　Poisson＇s　ratio　were　studied　at　different　constraints　and　different　strain　rate.　The　results　show　that:　(1)　with　the　strain　rate　increased,the　inflexion　strength　and　ultimate　strength　of　concrete　were　improved;　(2)　with　the　strain　rate　increased,　the　static　and　dynamic　elastic　modulus　increased　slightly;　(3)　Poisson＇s　ratio　increased　slightly　with　the　growth　strain　rate.