The invention discloses a cable protection device, and an implementation tool and a use method of the protection device. A sleeve, a sleeve fixing cylinder and a protection cylinder are sequentially arranged on a cable from inside to outside, so that the cable, particularly, a bare wire is protected. A motor drives an unfolding rod, so that the implementation tool of the protection device extends into a first elongated opening of the sleeve or a second elongated opening of the sleeve fixing cylinder or a third elongated opening of the protection cylinder, the sleeve, the sleeve fixing cylinder and the protection cylinder are unfolded, labor intensity is reduced, the cable protection device solves the problem that the sleeve, the sleeve fixing cylinder and the protection cylinder are difficult to be unfolded, a mounting portion of the implementation tool can be a fixed long rod or an insulating rod capable of changing length, the unfolded sleeve, the unfolded sleeve fixing cylinder and the unfolded protection cylinder can be sequentially sleeved on the cable by standing on the ground or a boat, and the cable protection device is convenient, rapid and relatively simple to operate.