In order to achieve the optimization of traffic polices resource and flat conductor, this paper proposed idea of architecture and functional design about wireless dispatching system of traffic police resources. And it is modeling on traffic polices' individual microscopic behavior by state automata method. It can show macro-quantitative analysis and real-time status about the work of traffic polices on duty. It constructed the optimal selection strategy on disposal of police resources under emergency by genetic algorithm which achieved the optimal scheduling of police resource. Through the running of this system in Beijing Traffic Management Command Center, it proved that both the design of this system and processing method is reasonable.