An anti-slip structure comprising a plurality of anti-slip projections that protrude outwardly from a floor surface and are arranged so as to be mutually isolated, the anti-slip structure being such that the anti-slip projections are of circular dome-like three-dimensional shape and are cured bodies produced by curing a composition for anti-slip treatment comprising a curable resin. This anti-slip structure causes a floor surface comprising ceramic tile, tile made of stone material, or the like to be imparted with excellent anti-slip capability without impairing the lustrousness, beauty, design characteristics, or cleanability of the floor surface.