To　overcome　the　limitations　of　traditional　urban　parking　demand　forecasting　method,　which　predict　the　parking　demand　of　the　old　town,　the　paper　studys　the　parking　demand　forecasting　method　of　the　old　town.　On　the　base　of　contrasting　the　advantages　and　disadvantages　among　traditional　parking　demand　forecasting　methods,　a　new　parking　demand　forecasting　method　is　put　forward　to　use　the　correlation　between　the　motor　vehicle　growth　rates　and　parking　demand.　The　method　has　obvious　advantages　than　traditional　prediction　method　in　predicting　the　reliability,　costs　of　investigation　and　prediction　parking　distribution　depth.　Case　study　results　show　that　the　relative　error　of　the　recent　forecast　less　than　5%　compared　with　the　method　based　on　the　number　of　cars,　the　investigation　cost　savings　30%-40%　than　the　motor　vehicle　OD　prediction　method　and　traffic-parking　demand　forecasting　method,　and　the　forecast　parking　distribution　can　be　obtained　for　each　traffic　survey　within　the　district.　The　results　also　show　that　the　method　can　be　applied　and　promoted　in　the　old　town　parking　demand　forecasting.