To provide a thermoplastic resin composition diminished in whitening when bent and good in molding processability and resin surface appearance.

This thermoplastic resin composition with low bend whitening tendency is obtained by compounding (A) 100 pts.wt. of a rubber-modified thermoplastic resin with (B) 1-100 pt(s).wt. of an alkyl (meth)acrylate-based polymer 500-10,000 in weight-average molecular weight containing ≥70 pts.wt. of alkyl (meth)acrylate unit; wherein the resin A consists of (a) a graft polymer ≥20% in graft ratio produced by (co)polymerization of at least one of an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer and vinyl cyanide-based monomer in the presence of a rubbery polymer, or consists of the polymer (a) and (b) a polymer produced by (co)polymerization of at least one of an alkyl (meth)acrylate-based monomer, an aromatic vinyl-based monomer and vinyl cyanide-based monomer, and contains 20-70 wt.% of the rubbery polymer.