PROBLEM TO BE SOLVED: To sufficiently reduce impedance fluctuation, propagation delay time fluctuation, and insertion losses that arise when a current flows through a wiring pattern. SOLUTION: A method for manufacturing a wiring board includes a first step of forming a conductive layer on an insulating layer having a glass cloth, a second step of forming a photosensitive resist layer on the conductive layer, a third step of recognizing an origin position of the insulating layer, a fourth step of positioning a mask relative to the origin position, which id so formed as to arrange a wiring pattern only at a position at which the wiring pattern overlaps the glass cloth in a plan view, and disposing the mask on the resist layer, and a fifth step of exposing the resist layer to light via the mask to form the wiring pattern only at the position at which the wiring pattern overlaps the glass cloth in a plan view. COPYRIGHT: (C)2011,JPO&INPIT