Experimental　study　on　seismic　behavior　of　fiber-reinforced　prestressed　wide-beam　frames　was　carried　out　using　MTS　load　systems.　Based　on　the　experiments　of　two　wide-beam　frames　with　steel　fiber　concrete　and　one　with　conventional　concrete　for　comparing　under　low　reversed　cyclic　loading,　the　failure　pattern,　hysteresis　behavior,　energy　dissipation,　displacement　ductility　and　rigidity　degeneration　etc.　have　been　studied.　The　results　show　that　steel　fiber　can　effectively　improve　the　cracking　load,　yield　strength　and　ultimate　strength,　and　enhance　the　rigidity,　ductility　and　energy　dissipation　of　prestressed　wide-beam　frames.