The invention discloses an integrated measuring and controlling device and system of an intelligent transformer substation. The device is provided with an intelligent manager by which data exchange among all modules can be achieved so as to realize the monitoring and controlling function, the dynamic and transient data monitoring function, the network message analyzing function, the process level function and the liquid crystal panel managing function, all circuits cooperate to realize all the functions under the control of the intelligent manager, the area occupied by secondary equipment is reduced, the integrity of the secondary equipment of the transformation substation is improved, the workload of maintenance and management is reduced, maintaining and managing efficiency is improved, uniform steady, dynamic, transient and process level messages can be provided for an electric power automation system, and the steady, dynamic and transient data monitoring function and the network message analyzing function are integrated.