Traditional　forecasting　method　of　traffic　demand　is　based　on　the　study　of　traffic　zones.　Therefore,　aggregate　error　is　produced.　Trip　generation　forecasting　method　use　the　same　average　trip　generation　rate　to　determine　trip　generation　volume　in　different　traffic　zones.　The　fascination　of　traffic　zones　is　not　considered.　In　order　to　reduce　the　forecasting　error　produced　by　different　trip　generation　rate　in　different　traffic　zones,　influencing　factors　of　fascination　of　traffic　zones　were　analyzed　and　the　detailed　calculation　method　of　trip　efficiency　and　fascination　of　zones　combined　with　destination　model　based　on　disaggregate　theory　is　given　in　this　paper　to　modify　traditional　model　of　trip　generation　and　distribution.　A　case　in　Beijing　is　used　to　explain　the　application　of　the　method　above.