To alleviate urban traffic congestion and solve pollution problems, from the angle of reducing traffic demand and from the perspective of environmental protection, a reasonable pricing model of congestion charging in motor vehicles is established. Taking the 6 main roads of Dalian City as the investigation object, the traffic flow and average speed are investigated. The pricing is calculated by using congestion pricing model and the scope of expropriation is determined by game theory model. Finally, this paper, through SP/RP survey method, obtains the residents’ acceptance of congestion charges, studies how to alleviate the traffic pressure through con- gestion pricing and at the same time to make greater efforts to solve the problem of tail gas pollution. The re- search results shows that the proper setting of traffic congestion charges may guide people to rely more on public transport. And the future urban traffic can be significantly improved, and environmental pollution problems can be reduced greatly.