Electric power protection cut-off device

The utility model relates to an electric power stabilization system device and specifically discloses an electric power protection cut-off device. The electric power protection cut-off device comprises a synchronous operation monitoring end, a voltage monitoring end, a frequency monitoring end and a control computer. The synchronous operation monitoring end, the voltage monitoring end and the frequency monitoring end are respectively connected with the control computer. The synchronous operation monitoring end, the voltage monitoring end and the frequency monitoring end transmit signals to the control computer. The output end of the control computer is connected with a switch controller. The switch controller is arranged on a load output end. The electric power protection cut-off device can make parts of problematic loads proactively cut off and guarantee the normal running of an electrical network.