The formulation of the IEC61850 and IEC61970 standard provides technical specifications to achieve interoperability between intelligent substation and dispatching management system. Aiming at the object model of IEC61850 and CIM model of IEC61970, this paper analyzes the model’s three-tier systems, and obtains that model coordinating is the key to system interoperability. Through analyzing the differences between object model and CIM model, a model coordinating method is given. This paper uses this method to coordinate the model’s categories, relations and properties, and employs adapter and interface technology to design data exchange experiment platform. Simulation results show that the coordinating method based on CIM model is effective and practical, and is able to achieve interoperability between dispatching system and intelligent substation system.