The　corresponding　data　from　2000　to　2015　are　utilized　to　study　the　dynamic　relationship　between　the　pollution　caused　by　vehicle　and　haze　happened　in　Beijing.　A　VAR　model　is　established　at　first,　and　then　the　trajectory　characteristics　and　the　contribution　rate　of　the　influences　of　vehicle　occupancy　number　per　capita,　annual　average　concentrations　of　nitrogen　dioxide　and　carbon　monoxide　on　haze　in　Beijing　are　obtained　by　using　the　impulse　response　function　and　variance　decomposition.　The　result　suggests　that　the　vehicle　occupancy　number　per　capita,　and　the　annual　average　concentrations　of　nitrogen　dioxide　and　carbon　monoxide　have　stable　and　positive　effects　on　haze.　Simultaneously,　the　contribution　rate　of　pollution　caused　by　vehicle　to　haze　is　51.4%,　of　which　that　of　vehicle　occupancy　number　per　capita　is　13%　and　that　of　the　vehicle　exhaust　emission　makes　up　the　remaining　38.4%.　During　the　all　analysis　periods,　the　effect　of　vehicle　occupancy　number　per　capita　on　haze　is　significant　in　the　first　five　periods,　and　nitrogen　dioxide　is　the　main　factor　causing　haze　after　the　5th　period.　©　2018,　China　National　Chemical　Information　Center.　All　right　reserved.