The invention relates to an intelligent power grid monitoring device, and belongs to the technical field of power grid monitoring. The intelligent power grid monitoring device comprises a monitoring management control system, a region-level power supply station and a power grid information center, wherein the region-level power supply station comprises a power supply control center and is connected with a power distributor; the power distributor is connected with the monitoring management control system; the power grid information center is connected with a wireless communication module; the wireless communication module is connected with a remote network controller; the remote network controller is connected with the monitoring management control system; the monitoring management control system comprises an information processing unit, a monitoring execution unit and an alarm decision-making unit; the monitoring management control system is connected with a power grid auxiliary machine and a monitoring sub-station; and the power grid auxiliary machine and the monitoring sub-station are connected with a user side. By the intelligent power grid monitoring device, related personnel can be timely informed of abnormal matters of power grid operation; and the intelligent power grid monitoring device has a positive promoting effect on comprehensive realization of intelligent and automatic control of a power distribution system.