Nonlinear　finite　element　analysis　was　carried　out　to　fiber-reinforced　unbonded-prestressed　wide-beam　frames　using　the　ABAQUS　program,　influence　of　steel　fibers　and　axial　compression　ratio　on　mechanics　behavior　was　discussed.　The　concrete　damaged　plasticity　model　was　used　during　the　analysis,　contribution　of　steel　fibers　to　nonlinear　behavior　of　concrete　is　considered.　Effects　associated　with　the　rebar/concrete　interface　were　modeled　as　spring　element　to　simulate　the　bond　slip　action.　It　was　proved　to　be　feasible　to　carry　out　the　analysis　using　the　materials　and　elements　providing　in　ABAQUS　program.　The　influences　of　steel　fibers　and　axial　compressing　ratio　on　the　mechanics　behavior　of　prestressed　wide-beam　frame　were　investigated.　The　results　show　that　the　large　axial　compressing　ratio　can　promote　the　ultimate　loading　capacity,　but　reduce　the　ductility　and　energy　dissipation.　Limitation　on　axial　compressing　ratio　was　advised　for　prestressed　wide-beam　frame　in　earthquake　region.　Steel　fibers　could　effectively　improve　the　ultimate　loading　capacity,　ductility　and　energy　dissipation,　thus　contributed　to　improving　the　seismic　behavior　of　wide-beam　frames.　The　effect　of　steel　fibers　is　related　with　axial　compressing　ratio.