In　Olympic　Games,　lots　of　pedestrians　will　gather　in　and　near　the　field,　the　venues　and　public　traffic　facilities,　being　crowded　and　congested,　when　spectators　aggregate　before　game　and　evacuate　after　game.　Thus　the　relational　path,　which　is　the　ligament　between　the　transit　and　metro　stations　and　the　venues,　would　load　the　huge　pedestrian　traffic.　In　the　bottleneck　of　the　path,　it　easily　brings　hidden　trouble.　In　this　article,　based　on　the　knowledge　of　the　regulation　of　spectators＇　arrival　and　leaving,　opportunity　model　is　built　and　pedestrian　traffic　distribution　characters　are　analyzed　in　Olympic　Park　region,　according　to　the　9th　day　schedule.　The　result　will　be　the　bedrock　for　establishing　operation　and　emergency　blue　print　in　advance.