To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner.A resin composition for plating, containing a polycarbonate resin (A), a graft copolymer (B) and a copolymer (C), wherein the resin composition satisfies the following conditions (1) to (5): (1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C); (2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component including an aromatic vinyl-based monomer; (3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; (4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and (5) a content of an oligomer component is less than 1% by mass relative to the resin composition.