The utility model discloses a novel secondary equipment safety blocking belt which comprises a cloth belt and a belt box, wherein the cloth belt is wound on a rotating shaft in the belt box; the inner end of the cloth belt is fixed with the rotating shaft; the outer end of the cloth belt is positioned on the outer surface of the belt box; a clamping mechanism is arranged at a cloth belt outlet of the belt box; hanging rings are respectively arranged at the outer end of the cloth belt and on the belt box; the hanging ring at the outer end of the cloth belt and the hanging ring on the belt box are respectively connected with hooks arranged on two fixed clamps; an upper clamping claw and a lower clamping claw are arranged on each of the two fixed clamps; the upper clamping claw comprises a spring and a clamping plate; the two fixed clamps are respectively clamped on an upper terminal strip and a lower terminal strip of electrical equipment by the upper clamping claws and the lower clamping claws.