The development state of smart grid and power grid dispatch iS analyzed,and combined with the latest achievements of computer science,the important role of dispatcher in new intelligent dispatch system is described.The intelligent dispatch architecture "with the dispatcher thinking mode as the framework, the visualized interface aS the function module and the interactive computation as the system core" is proposed,which adapts to the characteristics of power grid in multiple dimensions and carries out the coordination of different parties.The key technologies of intelligent dispatch construction are pointed out in difierent aspects:man-machine integrated decision-making model,data fusion,situation visualization,fast simulation and modeling,intelligent warning,intelligent dispatch and backup system,emergency center integration,dispatcher behavior assessment,etc.