Provided: polyolefin resin composition excellent in antistatic properties with sufficient persistence and wiping resistance, without impairment of intrinsic mechanical properties; and an automotive interior/exterior material containing the same. The polyolefin resin composition contains: 50 to 90 parts by mass of polyolefin resin; 3 to 40 parts by mass of thermoplastic elastomer; 3 to 30 parts by mass of filler, and an antistatic agent of a polymer compound (E) in an amount of 3 to 20 parts by mass with respect to a total amount of 100 parts by mass of the polyolefin resin, thermoplastic elastomer and filler, wherein the polymer compound (E) has a structure in which a diol, an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, a compound (B) containing at least one group of Formula (1) and having hydroxyl groups at both ends, and an epoxy compound (D) having two or more epoxy groups are bound via ester bonds: —CH2—CH2—O—  (1).