An intelligent city management system comprises a front-loading server, a client equipment, a mashup server, a synergetic management server, a resource share server, a deconstruction tool server, a resource clue tool server and a city service bus. The front-loading server is used for extracting client data and converting the same into stipulated data transmission protocols to store an exchange library of the resource share server. The mashup server is used for providing application components and service components for calling. The synergetic management server is used for providing various services for users. The resource share server is used for receiving data from a remote data extraction system and handling the data in standardization manner. The resource clue tool server is used for subjecting standard data in a central base to subject classification and storing into a subject base. The deconstruction tool server is used for extracting data in the subject base and the central base and evaluating city operation via models by the aid of the application components provided in the mashup server.