According　to　the　research　on　principle　of　mobile　phone＇　signaling　events,　a　travel　route　identification　algorithm　of　subway　passenger　was　proposed　based　on　NORMAL　LOCATION　UPDATE　of　the　passengers＇　mobile　phone.　Meanwhile,　in　order　to　mend　travel　route　when　the　signaling　data　was　missed,　a　repair　algorithm　was　also　proposed　based　on　the　normal　communication　events,　such　as　phone　calling　and　called,　message　receiving　and　sending.　Finally,　two　typical　subway　stations　of　Beijing　subway　system　were　selected　to　validate　the　travel　route　identification　algorithm.　The　application　result　showed　that　the　algorithm　could　identify　the　subway　passenger　travel　route　accurately　with　Mobile　Phone　Location　Data.