Method for automatically diagnosing telemeasuring data transmission failure of power grid energy manage system

The invention discloses a method for automatically diagnosing telemeasuring data transmission failure of a power grid energy manage system (EMS). The method comprises the steps: through monitoring each protecting/measuring intelligent electronic device (IED) of a factory station, telecontrol equipment, an exchanger and a pre-communicator of a master station in real time, after monitoring that the telemetering data value is changed, triggering the telemetering non-refreshing/jumping detection flow, detecting whether the telemetering data M2 at the telecontrol equipment side, the telemetering data M3 at the exchanger side, and the telemetering data M4 at the master station pre-communicator side of the same measuring object are normally obtained after receiving the telemetering data M1 at the IED side, and judging whether the values of the M1, M2, M3 and M4 are the same; according to the monitoring result, generating the telemetering non-refreshing/jumping pre-warning of the corresponding device; and discovering the existent telemetering non-refreshing and jumping situations in the EMS system in first time, and automatically accurately positioning the non-refreshing or jumping node. The transmission accuracy of the measuring information in the power grid EMS is ensured, and the load of the operator is greatly relieved.