To　ensure　the　safe　evacuating　environment　in　an　urban　traffic　tunnel　fire,　the　performancebased　design　of　smoke　control　strategy　was　applied　in　this　paper.　A　preliminary　design　of　the　smoke　control　strategy　was　evaluated　by　using　the　software　FDS.　By　analyzing　the　distribution　of　the　temperature　and　visibility　around　the　fire　source,　it　was　found　that　the　preliminary　strategy　could　not　satisfy　the　requirement　for　the　evacuation.　After　modifying　the　preliminary　strategy,　the　smoke　control　effects　and　evacuation　results　were　simulated　and　analyzed　again.　The　results　indicate　that　the　improved　strategy　could　successfully　control　the　movement　of　the　smoke　and　provide　desirable　evacuating　environment.　©　2011　IEEE.