PROBLEM TO BE SOLVED: To provide an aqueous polyurethane resin composition capable of providing a glass fiber reinforced resin excellent in binding properties for glass fibers and in mechanical strength.SOLUTION: An aqueous polyurethane resin composition is obtained by dispersing in water an aqueous polyurethane resin which includes a polyol compound (A), polyisocyanate (B), a hydrophilic compound (C), fatty acid ester polyol (D), and a compound (E) with a hydroxyl group and an unsaturated double bond. (C) is a compound represented by general formula (1) wherein Ris a 2-4 valent alcohol residue or a group represented by general formula (2). (D) is a fatty acid ester polyol containing an unsaturated fatty acid ester polyol obtained by reacting a fatty acid of a drying oil or a fatty acid of semidrying oil with trimethylolpropane, glycerin or pentaerythritol. (E) is an allyl ether compound, a (meth)acrylate compound, a vinyl ether compound or an alkyl vinyl ether compound.
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