The invention relates to a cable identification device. The cable identification device comprises a buckling hoop, a clamping groove is arranged over the buckling hoop, a connecting piece is arranged between the buckling hoop and the clamping groove, the side frame of the clamping groove is provided with a fluorescence ring, the buckling hoop is provided with a fixing tie, and holes are formed in the buckling hoop. The device is simple in structure and convenient to operate, an insulated jacket of a cable is not prone to being damaged, and the security of a line is guaranteed.