This application relates to an intelligent traffic cloud control system based central system so as to address the problems of the central system in the relevant art being overloaded, and operating at a low rate. An intelligent traffic cloud control system according to an embodiment of this application at least includes a central system, a plurality of control servers, and a plurality of field devices, wherein the central system is connected with the control servers over a network, and the field devices are connected with the control servers over IP address based broadband buses; and the central system is configured to collect data in one or more of the following data collecting modes: monitoring state data of the control servers in real time, inquiring about data from the control servers in non-real time, and subscribing to data from the control servers as needed.