The utility model discloses a portable safety barrier suspension device which comprises a base, an electromagnet is fixedly installed on the rear end face of the base, a switch is arranged on the front end face of the base, the switch is electrically connected with the electromagnet, and static fixing boxes are fixedly installed at the two ends of the base. The utility model discloses a portable safety barrier suspension device. A base, an electromagnet, a telescopic rod, a movable fixing box, a static fixing box, an external thread block, a magnet ring and a switch are matched for use; the base can be fixed on the centrally installed switchgear; therefore, the barrier or the red cloth can be fixed; the magnetic ring is further adsorbed and fixed with the centrally installed switchgear; the stability and the stability of fixing the barrier or the red cloth are further improved, the possibility that the barrier or the red cloth is collided and knocked off is greatly reduced, the barrieror the red cloth is effectively prevented from falling off in the overhauling process, meanwhile, the telescopic rod can stretch out, the device can adapt to barriers or red cloth with different widths, and the practicability of the device can be improved.