Road　traffic　has　changed　as　an　essential　source　of　influential　urban　air　pollution　in　China.　This　study　developed　the　Spatial　Durbin　Model　to　analyze　the　spatial　spillover　effects　on　air　pollution　caused　by　urban　transportation　infrastructure.　The　results　show　that　high-emission　areas　congregate　in　the　eastern　region　of　China,　which　reflects　noticeable　spatial　spillover　effects　and　agglomeration　characteristics　as　high-emission　＂clubs.＂　When　the　traffic　construction1　area　increases　by　1%,　the　air　pollution　level　will　increase　3.2%　as　accompanied.　The　improvement　of　the　transportation　infrastructure　will　bring　out　economic　development.　The　speed　of　air　pollution　generated　by　the　resources　consumed　by　economic　development　is　higher　than　that　of　technological　improvement　in　the　economic　transition　period　to　reduce　air　pollution.　In　contrast,　economic　growth　and　air　pollution　exacerbation　represent　a　U-shaped　curve　connection.　Most　provinces　remain　in　a　stage　where　air　pollution　worsened　with　economic　growth.