The utility model discloses a wiring system, it includes the line concentrator and is used for the threading device at the threading conduit wiring, electric wire on the line concentrator is fixed on threading device, threading device is at the threading conduit wiring, threading device's frame is provided with the 3rd electric telescopic handle corresponding the side with first installing support, the 3rd electric telescopic handle front end sets up on first installing support, the frame is provided with fourth electric telescopic handle corresponding the side with the second installing support, fourth electric telescopic handle front end sets up on first installing support. Thereby make threading device always along the removal of threading pipe, carry over electric wire or cable out of the threading pipe, adopt machine wiring to replace manual wiring, improved wiring efficiency, avoided electric wire, cable the condition of jam pipelines such as winding, distortion to appear in the threading pipe.