Based　on　experiments　of　CFRP　(Carbon　fiber　reinforced　plastic)　prestressed　macro-fiber　concrete　beams　under　low　reversed　cyclic　loading,　failure　pattern,　hysteresis　curves,　ductility,　rigidity　degeneration,　energy　dissipation　are　studied　systematically.　Studies　show　prestressed　FRP　(fiber　reinforced　plastic)　tendons　can　obviously　improve　the　carrying　capacity　of　concrete　beams,　and　FRP　prestressed　macro-fiber　concrete　beams　has　better　seismic　performance　and　ductility.　The　simulation　analysis　of　concrete　beams　based　on　AN-SYS　program　is　carried　out,　calculation　results　are　in　good　agreement　with　those　of　the　tests.