In traditional power grid dispatching and control systems, GIS was embedded in the graphical browser by replacing graphical windows. This method has limitations such as poor interactivity between GIS and graphics, single display layout, and inability to flexibly support business scenario customization. This article proposes a GIS framework that is highly integrated with the power grid dispatching and control system, and discusses its key technologies such as human-machine modular GIS and multi activity geographic information services. Based on the actual application of engineering projects, the advantages and disadvantages of different GIS schemes were comprehensively compared, and the results showed that the research results have high practicality and convenience.