The invention relates to a public traffic information system for comprehensive management and broadcast and an operation control method thereof. The public traffic information system comprises the components of a vehicle scheduling system, a passenger identification electronic label generating system, a platform passenger flow statistics system, a user information issuing system, a passenger reservation system, a platform electronic board selecting and information upgrading system, an in-vehicle passenger information statistics system and a road condition real-time monitoring system; wherein the vehicle scheduling system, the passenger identification electronic label generating system, the platform passenger flow statics system, the user information issuing system, the passenger reservation system, the platform electronic board selecting and information upgrading system, the in-vehicle passenger information statistics system and the road condition real-time monitoring system are connected with a network node. According to the public traffic information platform and the operation control method thereof, information of the platform, the passenger and the buses can be obtained in real time through the public traffic information platform; furthermore the passenger transport capability of a vehicle is calculated through the vehicle scheduling system according to the invention; and whether vehicle arrangement is required at the platform is determined through the passenger transport capability of the vehicle, thereby reducing a passenger transport pressure. At aspects of actual users and bus scheduling, an integrated information broadcast platform and a bus scheduling method are presented, thereby facilitating public traffic network informatization construction.