Abstract: The present invention provides an electromagnetic wave-permeable brilliant coated resin product which has a brilliant coating film formed by applying a coating composition that includes a planar brightening material formed from aluminum, on a resin substrate. Within the brilliant coating film, the brightening material is oriented in a state such that a plane thereof is biased toward a direction that follows a surface of the brilliant coating film, and an average overlapping quantity (y), which is an average of a quantity of brightening material that crosses one orthogonal line that is orthogonal to the surface of the brilliant coating film, and an average inter-brightening material distance (x), which is an average of distances on the orthogonal line between adjacent brightening materials that cross said orthogonal line, satisfy the following two formulae: y?0.5 ??(formula 1), and y?0.3969x+0.594 ??(formula 2), where, the unit for x is ?m.