Device for replacing electric energy meter without power cut

The utility model provides a device for replacing an electric energy meter without power cut. The device comprises a shell, and a voltage and current display device, a safety device and a current transformer which are arranged in the shell, the first end of the safety device is connected with a power supply wire inlet terminal of a to-be-replaced electric energy meter outside the shell through a first wire and a second wire; a second end of the safety device is connected with a power supply outgoing line terminal of a to-be-replaced electric energy meter outside the shell through a third lead and a fourth lead; the positive electrode of the first end of the safety device and the negative electrode of the second end of the safety device are connected with the voltage and current display device in parallel through a fifth wire and a sixth wire respectively. The first wire passes through the current transformer, and the wiring end of the current transformer is connected in series with the voltage and current dis