The present invention pertains to a V-ribbed belt provided with a a core, a stretched layer, and a compressed rubber layer including a vulcanizate of a rubber composition, a side portion of the compressed rubber layer being a grinded surface that comes into contact with a pulley, and a bottom portion of the compressed rubber layer being a non-grinded surface that does not come into contact with the pulley wherein the surface of the bottom portion: includes heat-resistant fibers that do not melt at the vulcanization temperature of the rubber composition; and has a composite layer including a fiber assembly of which the weight is 25 g/m 2 or less, and a vulcanizate of the rubber composition impregnated between the fibers of the fiber assembly.