A tidying device to facilitate the securing of a cable to a tidying slot of an enclosure includes a controller and a gripping module mounted to the controller. A gap is defined for receiving the cable. A pressing module is slidably mounted to the controller. An end of the cable is secured to the enclosure. The tidying device is movable relative to the enclosure to move the cable to be aligned with the tidying slot. The pressing module is slidable relative to the controller to engage the cable in the tidying slot under a control of the controller.