The present invention relates to a polyurethane resin composition which comprises a polyurethane resin composition (A), an inorganic filler (B) and a photopolymerization initiator (C), wherein the polyurethane resin composition (A) contains a (meth) acryloyl group and a polyoxyalkylene skeleton Wherein the content of the inorganic filler (B) is from 250 to 700 parts by mass based on 100 parts by mass of the polyurethane resin composition (A), wherein the polyurethane (a) and the polymerizable monomer (b)
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