In　order　to　actualize　a　well-ordered　transportation　organization　and　improve　the　efficiency　of　emergency　evacuation,　the　characters　of　some　natural　disasters,　such　as　hurricane,　flood　ect,　which　could　be　early　warned,　observed　and　treated　were　analyzed,　the　mechanisms　of　emergency　evacuation,　the　methods　of　traffic　organization　and　the　technical　application　of　traffic　simulation　at　home　and　abroad　were　studied,　and　with　regard　to　prepare　the　emergency　evacuation　contingency　plan　for　2008　Olympic　Games　in　Beijing,　the　research　orientation　and　systematic　planning　method　of　emergency　evacuation　which　were　fit　for　Chinese　situation　and　traffic　environment　were　proposed.　Analysis　result　indicates　that　bus　transit　should　be　used　as　the　main　transportation　evacuation　mode　in　China,　transportation　evacuation　efficiency　and　organization　levels　can　be　improved　by　perfecting　the　planning　system　of　emergency　evacuation,　integrating　the　key　traffic　technologies　such　as　route　selection,　traffic　control　and　evacuation　time　calculation,　and　a　decision　and　evaluation　system　of　emergency　transportation　evacuation　is　established　by　applying　traffic　simulation　and　ITS　technologies.　2　figs,　42　refs.