The present invention provides a composition for optical three-dimensional modeling, which enables the achievement of excellent shaping accuracy during shaping by means of optical three-dimensional modeling, and excellent transparency and mechanical characteristics of a cured product thereof. The present invention relates to a composition for optical three-dimensional modeling, which contains (a)a polymerizable monomer, (b) ultraviolet-absorbing inorganic particles and (c) a photopolymerization initiator.