Abstract: The present disclosure provides a leakage protection plug comprising a plug main body having one end connected to a load and the other end connected to an outer power supply through two inserting pieces. A transformer, a trip mechanism, and a PCB control board are arranged inside the plug main body. The transformer detects the leakage current signal between the live wire and the neutral wire and transmits the leakage current signal to the PCB control board. When the PCB control board determines that the current difference between the live wire and the neutral wire is greater than the preset value, the PCB control board outputs the control signal to the trip mechanism. The trip mechanism thus breaks the circuit connection between the power supply and the load. The reset mechanism resets the power supply and the load to connect the power supply with the load again.