To provide a plastic molded article which is excellent in stain-removable property, water-draining property, anti-haze property, dewing-preventing property, anti-static property and biocompatibility and has a coating film of hydrophilizing coating composition containing an organometallic compound having a hydrolyzable leaving group, its oligomer and/or cooligomer comprising two or more of the organometallic compounds on at least one outermost layer of a plastic substrate.