An artificial nail composition having improved adhesion with natural nails (user's own nails) is provided. The present invention relates to an artificial nail composition comprising (a) a photo-polymerizable monomer having at least one primary alcoholic hydroxyl group in the molecule, and/or a photo-polymerizable monomer having at least one carboxyl group and at least one primary alcoholic hydroxyl group in the molecule； (b) a photo-polymerizable monomer having at least one carboxyl group in the molecule except for the photo-polymerizable monomer (a)； (c) a photo-polymerizable monomer except for the photo-polymerizable monomers (a) and (b)； and (d) a photo-polymerization initiator.
