The invention relates to the technical field of power grid planning, and specifically relates to a power grid PMS and EMS based power grid equipment operation state evaluation system. The power grid equipment operation state evaluation system comprises a data integration layer, a platform service layer, a service application layer and an information display layer, and is characterized in that the data integration layer performs unified access on data of each service application systems through the information integration platform; the platform service layer comprises a service application platform and a power grid GIS platform, performs unified management on data accessed by the service application systems and provides various analysis services; the service application layer helps the daily work staff to understand power grid operation conditions and provides data and technical support for the work staff to timely grasp weak links of the power grid; and the information display layer is provided with various information display platforms according to different authorities and operating habits of the staff. The power grid equipment operation state evaluation system realizes unification for acquisition interfaces of associated data and integration of access services of the power grid, and truly realizes information interaction of a static PMS and a dynamic EMS of the power grid.