In　recent　years,　the　construction　of　subway　in　China　is　in　a　period　of　an　rapid　development.　The　passengers　are　in　high　density　within　the　subway　during　the　operation　time,　the　problem　of　safety　in　emergencies　has　attracted　more　and　more　attentions.　The　structure　of　atrium　metro　station　is　special,　fire　partition　area　in　the　station　is　difficult　to　divide.　And　there　is　a　hidden　danger　of　fire,　which　is　not　easy　to　realize　effective　exhaust　and　smoke　control.　Once　there　is　a　fire　the　magnitude　of　injuries　will　be　overwhelmingly　disastrous.　Therefore,　more　attention　should　be　paid　on　pedestrian＇s　evacuation　in　subway　stations.　Therefore,　an　atrium　subway　station　in　Beijing　is　selected,　hot　smoke　test　and　STEPS　software　simulation　were　carried　out.　We　also　analyzed　the　escape　environment　and　escape　routes,　reasonable　evacuation　time　is　obtained,　as　well　as　a　reasonable　escape　strategy.