The invention, which belongs to the attachment tools for power work, discloses a cable band comprising a master cable band and a plurality of sub cable bands. The master cable band includes a master band body; a master band locking port is fixedly arranged at a first end portion of the master band body; and a master band retaining mechanism is arranged at the master band body. The sub cable bands contain sub band bodies; sub band main locking ports are arranged at first end portions of the sub band bodies and sub band side locking ports are fixedly arranged at the sides of the sub band main locking ports; and sub band retaining mechanisms are arranged at the sub band bodies. The sub band main locking ports or sub band side locking ports pass through the master band body and are in a clamping fit relation with the master band retaining mechanism. According to the invention, the cable band includes the master cable band and the multiple sub cable bands, and the sub band side locking ports are arranged at the sub cable bands. When each two cables are laid, the sub cable bands can penetrate the sub band side locking ports at the last stage, so that the stage-to-stage connection is realized and the binding is firm and an aesthetic effect is realized. With the cable band, the cable binding efficiency during construction of a newly-built transformer substation or modification of an old transformer substation can be improved by 220%.