The invention discloses a cable sheath material dyeing device. The cable sheath material dyeing device comprises a machine body; the left side of the machine body is fixedly connected with an unreeling device and a dyeing device sequentially from left to right through a supporting plate; the right side of the machine body is fixedly connected with a reeling device through a supporting plate; one side of an inner cavity of the machine body is welded with a heating device; a box body is embedded at the top of the machine body; and the left side of the back side of an inner cavity of the box bodyis fixedly connected with a motor through a fixing piece. Through cooperation of the unreeling device, the dyeing device, the reeling device, the heating device, the motor, a driving wheel, a belt, adriven wheel, a rotating rod, a fixed shaft, an annular groove plate, a sliding groove, a connecting plate, an air outlet spray head and an air inlet, the effect of dyeing a cable sheath is achieved,so that the advantage of good effect of dyeing the cable sheath is achieved, the quality of a cable product is improved, the post processing of the cable is guaranteed and the cable can be differentiated by installation personnel.