The　elastic　coefficient　method　is　one　essential　method　to　traffic　forecast.　Its　result　not　only　receives　the　economic　indicator　predicted　value　the　influence,　but　also　is　closely　linked　with　forecast　technique＇s　choice.　Based　on　fuzzy　multiple　regression　theory,　the　relationship　is　established　between　freight　volume　and　the　related　economic　variable,　and　the　model　is　solved,　then　transport　elasticity　coefficient　is　forecasted.　Hunan＇s　highway　passenger　transport　elasticity　coefficient　forecast　result　indicated　that　based　on　fuzzy　multiple　regression＇s　elasticity　coefficient　forecast　technique　by　the　determination　elasticity　coefficient＇s　range　of　variation,　may　effectively　solve　imprecise　observation　data　and　forecast　precision　question　brought　by　indefinite　target　change,　and　reflect　transportation　and　economical　trend　of　development　relations　reasonably.