To obtain a resin composition capable providing a molding product having high impact resistance and good application property of paint and reducing the drop of the impact strength by coating.

This composition comprises (A) a polypropylene-based polymer having propylene-ethylene block copolymer, (B) an ethylene-propylene rubber, (C) a triblock copolymer, (D) a modified polyolefin polymer having a hydroxy group and (E) talc. The component A of the polypropylene-based polymer has 5-100g/0 min melt flow rate (MFR) and the xylene extract of the component A at 20°C has 2.0 5.0 g/dl intrinsic viscosity in 140 SoS decaline. The component B of the ethylene-propylene rubber has 3.0-60 wt.% propylene content and 0.5-10g10min MFR. The component C f the triblock copolymer has 40-200-g/10min MFR. The critical energy release rate between the triblock copolymer and the xylene-undissolved component of the component A of the polypropylene-based polymer at 110C is 1so ≥20J/mX. The percentage of the component C is 2-10 wt.% based on the total amount of components (A), (B), (C) and (E). The percentage of the component (D) of the modified polyolefin polymer is 0.5-20 wt.% based on the total amount of components (A), (B), (C) and (E) and the percentage of the unsaturated compound having the hydroxy group in the modified polyolefin polymer is 0.5-7.0wt.%. The component E of the talc has ≤5μm average particle diameter and the percentage of the component E is 5-2 5wt.% based on the total amount of the components (A), (B), (C) and (E).