A resin composition comprising: a (meth)acrylic copolymer containing 5 to 85% by mass of a (meth)acrylate unit (a) represented by General Formula and 15 to 95% by mass of a methyl(meth)acrylate unit (b) with respect to said copolymer; and a polycarbonate-based resin: wherein X represents a single bond, or a bivalent group selected from the group consisting of -C(R 2)(R 3)-, -C(=O)-, -O-, -OC(=O)-, -OC(=O)O-, -S-, -SO-, -SO 2 - and a combination thereof, wherein R 2 and R 3 each independently represent a hydrogen atom, a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a phenyl group or a phenylphenyl group; or R 2 and R 3 may be bonded to each other so as to form a cyclic alkyl group having 3 to 10 carbon atoms together with a carbon atom to which they are attached; R 1 represents a hydrogen atom or a methyl group; R 4 and R 5 each independently represent a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a halogen atom, a phenyl group or phenylphenyl group; m represents an integer of 1 to 10; p represents an integer of 0 to 4; and q represents an integer of 0 to 5. a (meth)acrylic copolymer containing 5 to 85% by mass of a (meth)acrylate unit (a) represented by General Formula and 15 to 95% by mass of a methyl(meth)acrylate unit (b) with respect to said copolymer; and a polycarbonate-based resin: wherein X represents a single bond, or a bivalent group selected from the group consisting of -C(R 2)(R 3)-, -C(=O)-, -O-, -OC(=O)-, -OC(=O)O-, -S-, -SO-, -SO 2 - and a combination thereof, wherein R 2 and R 3 each independently represent a hydrogen atom, a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a phenyl group or a phenylphenyl group; or R 2 and R 3 may be bonded to each other so as to form a cyclic alkyl group having 3 to 10 carbon atoms together with a carbon atom to which they are attached; R 1 represents a hydrogen atom or a methyl group; R 4 and R 5 each independently represent a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a halogen atom, a phenyl group or phenylphenyl group; m represents an integer of 1 to 10; p represents an integer of 0 to 4; and q represents an integer of 0 to 5. X represents a single bond, or a bivalent group selected from the group consisting of -C(R 2)(R 3)-, -C(=O)-, -O-, -OC(=O)-, -OC(=O)O-, -S-, -SO-, -SO 2 - and a combination thereof, wherein R 2 and R 3 each independently represent a hydrogen atom, a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a phenyl group or a phenylphenyl group; or R 2 and R 3 may be bonded to each other so as to form a cyclic alkyl group having 3 to 10 carbon atoms together with a carbon atom to which they are attached; R 1 represents a hydrogen atom or a methyl group; R 4 and R 5 each independently represent a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, a cyclic alkyl group having 3 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms, a branched alkoxy group having 3 to 10 carbon atoms, a cyclic alkoxy group having 3 to 10 carbon atoms, a halogen atom, a phenyl group or phenylphenyl group; m represents an integer of 1 to 10; p represents an integer of 0 to 4; and q represents an integer of 0 to 5.