Abstract: Provided is an anti-slipping device for dual tires including: a plurality of spike members 100 which includes an insertion plate 110 bent in a trapezoidal shape to be inserted between the dual tires 10, and a close-contact plate 120 integrally and flatly extending from opposite sides of the insertion plate 110 to closely contact each surface of the dual tires 10; a belt 200 for connecting the insertion plates 110 of the plurality of spike members 100 to each other; and a fastener 300 detachably coupled to opposite ends of the belt 200 to adjust tension of the belt, wherein a plurality of first and second spikes 121 and 122 protrude from an outer surface of each close-contact plate 120 of the plurality of spike members 100 at regular intervals to be different in height from each other to prevent friction with a road surface and slipping, thereby stably providing running performance and braking power to minimize a risk of a slipping accident.