The anti-skid boot, having a crampon, is provided with both an outer sole and a boot body. The anti-skid boot includes a crampon which is provided around an outer surface of a front part of the outer sole. The crampon includes a plurality of triangular protrusions, a plurality of oblique slots and a locking notch. The anti-skid boot further includes a plate spring which is provided between the crampon and the outer sole. The anti-skid boot further includes a plurality of support pins which is fastened to the outer surface of the outer sole after passing through the plurality of oblique slots, and a locking hook which is rotatably coupled to a predetermined position of the outer surface of the outer sole adjacent to each of the opposite ends of the crampon.