Building　structures　and　members　may　suffer　the　action　of　blast　or　impact　loads　and　fire　during　the　service　life.　In　some　cases,　they　are　applied　to　the　building　structures　and　members　sequentially　and　this　leads　to　the　combined　effect　of　high　strain　rate　loads　and　elevated　temperatures.　In　order　to　investigate　the　dynamic　behaviors　of　steel　fiber　reinforced　concrete　beams　(SFRCB)　subjected　to　blast　or　impact　loads　after　fire　exposure,　a　series　of　drop-weight　impact　tests　on　SFRCB　were　carried　out　at　elevated　temperatures.　An　electric　furnace　was　used　to　heat　the　specimens　following　the　temperature　time　history　expressed　by　the　ISO834　standard　temperature　rising　curve,　and　then　drop　weight　impact　loads　were　applied　to　the　specimens　immediately　when　the　expected　temperature　was　reached.　The　test　results　showed　that　the　addition　of　steel　fiber　can　improve　the　dynamic　performance　of　specimen　beams.　For　the　specimen　beam　with　the　steel　fiber　volume　content　of　1%　and　2%,　the　mid-span　peak　displacement　at　600　degrees　C　has　a　decrease　of　about　8.9%　and　19.6%,　respectively,　comparing　to　that　of　the　specimen　beam　without　the　steel　fiber.　The　peak　impact　force　of　the　specimen　beam　with　the　steel　fiber　volume　content　of　2%　is　8.5%　higher　than　that　of　the　specimen　beam　without　the　steel　fiber　at　400　degrees　C.　The　peak　impact　force　of　the　specimen　beam　with　the　steel　fiber　volume　content　of　1%　and　2%　is　17.5%　and　10.3%　higher　than　that　of　the　specimen　beam　without　the　steel　fiber　at　600　degrees　C,　respectively.　The　elevated　temperature　can　deteriorate　the　dynamic　performance　of　specimen　beams.　A　finite　element　simulating　model　was　developed　in　LS-DYNA　to　predict　the　dynamic　behaviors　of　the　fire　damaged　SFRCB.　The　continuous　surface　cap　(CSCM)　constitutive　model　was　adopted　to　describe　the　mechanical　behaviors　of　SFRCB.　The　impact　dynamic　response　of　specimen　beams　at　elevated　temperatures　was　numerically　simulated　and　compared　with　the　corresponding　test　results.　The　numerical　results　reveal　a　generally　good　agreement　with　the　test　results.　Experimental　and　numerical　results　show　that　the　specimen　beams　suffer　more　serious　impact-induced　damage,　including　more　cracks　and　larger　mid-span　displacement　at　elevated　temperatures　than　that　at　normal　temperature.　This　research　will　be　of　direct　importance　to　both　practitioners　and　researchers　involved　with　protective　design　of　buildings.