Abstract: To meet further requirements of smart grid development,it has become an extremely urgent demand to realize grid integration operation and coordination control based on panoramic information in provincial and local electric power dispatching center.This paper researches the key technologies of provincial and local integrated power grid dispatch based on grid model,data collection,functional application,etc,realizes dynamic interaction and on-demand sharing of the power grid model,graphics information,real-time data,historical data,fault information and other information,and explores several provincial and local integrated applications.This research topic is the main focus of the smart grid dispatching support system’s pioneer projects in Jiangsu.