Provided is adhesive resin compositions comprising (A) 30 to 70% by mass of an acid-modified polypropylene-based resin; (B) 20 to 60% by mass of a polypropylene-based resin; and (C) 2 to 20% by mass of a copolymer of ethylene and one or more kinds of comonomers selected from the group consisting of vinyl acetate, alkyl methacrylate, and alkyl acrylate, with the proviso that the sum of the percentages of the above component (A), the above component (B), and the above component (C) is 100% by mass.