The Western Region is with a vast territory,traffic development and social-economic development in a society has not only put up obvious regional otherness,but also exsisted intrinsical relationship.In the different condition,the adaptability of Traffic development,social-economic development and regional progress have been deeply effected and restricted regional progress.Grounded on the equilibrium of traffic development and social-economic development in the Western Region,this study introduce cluster analysis and principal component analysis method to do regional clusters of traffic in the western region,the significance of this study lies in its contribution to regional traffic policy.