The invention provides a technical scheme of a high-voltage user metering mutual inductance door closure reminding alarm device which comprises a server, wherein the server is applied to data checking and analysis and is connected with a client. The high-voltage user metering mutual inductance door closure reminding alarm device is characterized in that the client is connected with an alarm device; the alarm device comprises a shell; a circuit board is arranged inside the shell; an alarm lamp and an alarm are arranged on the shell; an inserting hole is formed in one side of the shell; a controller is arranged on the circuit board; the controller is connected with the client through an interface module arranged in the inserting hole; the controller is connected with the alarm lamp and the alarm through an alarm driving module. By adopting the system provided by the scheme, when data abnormity happens to a power grid, an alarm can be made in time to remind operators to process the abnormity in time, and the situation that the abnormity is neglected by the operators can be avoided.