Experimental　research　on　static　load　and　fatigue　behaviors　of　strengthened　reinforced　concrete　(RC)　beams　using　prestressed　aramid　fiber　reinforced　polymer　(AFRP)　sheets　with　permanent　anchor　was　carried　out.　The　formulas　for　computing　the　fatigue　life　of　the　beams　strengthened　with　prestressed　AFRP　sheets　were　put　forward.　Static　load　experimental　results　of　five　beams　show　that　when　prestress　level　is　55%-65%,　the　cracking　load　and　yield　load　of　RC　beams　strengthened　with　prestressed　AFRP　are　147%-165%　and　28%-50%　respectively.　It　is　larger　than　that　of　RC　beams　strengthened　with　non-prestressed　AFRP.　Five　specimens　fatigue　experimental　results　show　that　AFRP　sheet　prestressed　retrofitted　RC　beams　have　significantly　effects　on　fatigue　life　and　the　fatigue　life　of　the　strengthened　beam　depends　on　the　stress　amplitude　of　the　vertical　steel　bar;　prestress　reinforcement　decreases　vertical　steel　bar　stress　amplitude　and　the　fatigue　life　of　the　retrofitted　RC　beam　increases　with　the　increase　of　the　prestress　level.