The invention discloses a bundling device with a detection function. The bundling device comprises a pedestal; a circular through hole is formed in the surface of the pedestal; a bearing is fixed inside the circular through hole, wherein the bearing and the a circular through hole are arranged coaxially; a branching shaft is arranged inside the bearing in a rotatable mode; and the bearing and the branching shaft are arranged coaxially. A plurality of bundling through holes are formed in the end surface of the branching shaft. Therefore, problems that various inconvenience during a wire installing process of a device are caused by difficult dismounting of the traditional branching shaft and the quality of wiring harness forming is affected because the distance between the branching shaft and the bundling shaft of the common bundling device can not be adjusted easily and thus the tension of the wiring harness can not be adjusted according to needs can be solved.