Abstract: An object of the present invention is to provide a water-base metallic coating for automotive interior materials being single-coat metallic finished which is excellent in adhesion to a substrate and fats and oils resistance and is further provided with so high alkali resistance as to be free from being whitened or discolored even by an aqueous high-concentration alkali solution. As a means of achieving this object, the water-base metallic coating for automotive interior materials according to the present invention comprises a metallic pigment and a vehicle, and is characterized in that the vehicle includes: a first water-based hydro-dispersion resin (A) obtained by hydro-dispersing, without using a surfactant, an acrylic resin which indispensably contains isobomyl methacrylate as a monomer component and no styrene and has a theoretical Tg in a range from 80 to 140° C., an acid value in a range from 10 to 25 mgKOH/g, and an SP value in a range from 9.5 to 10.