An object of the present invention is to provide a curable coating agent composition excellent in adhesion to a substrate such as a (meth)acrylic resin, appearance of a thick coating film, and friction resistance of a cured coating film. A curable coating agent composition including a silicone oligomer (A) having a hydrolyzable functional group, a condensation reaction catalyst (B), a silane compound (C), and an organic solvent (D), in which the component (C) contains at least one or more of a silane compound (c1) having a primary amino group and a hydrolyzable functional group and at least one or more of a silane compound (c2) having a secondary amino group and a hydrolyzable functional group.