Wiring protection device capable of replacing electric energy meter in live-line way

A wiring protection device capable of replacing an electric energy meter in a live-line way comprises an insulation ripple telescopic sleeve, an insulation plastic sleeve and a clamping sleeve, wherein the insulation plastic sleeve is provided with an external thread, the clamping sleeve is provided with an internal thread, openings are formed in hole walls of the insulation ripple telescopic sleeve, the insulation plastic sleeve and the clamping sleeve and penetrate through the hole walls along an axial direction, one end of the insulation telescopic sleeve is connected with the insulation plastic sleeve, the opening of the insulation plastic sleeve and the opening of the insulation ripper telescopic sleeve communicate with each other and are arranged in the same side, at least two elastic copper pieces are fixedly arranged in the insulation plastic sleeve and extend along an axial direction, the elastic copper pieces are arranged at an inner side wall of the insulation plastic sleeve, via holes are formed a