There provided a method of manufacturing a multi-layered wiring board having at least two conductor layers, an interlayer insulation layer provided between the conductor layers, and a conductor post that electrically connects the conductor layers, on a substrate. In the method, the conductor post is formed by repeatedly performing: coating a droplet containing a conductive material, applying light energy to the coated droplet, and accumulating and coating a subsequent droplet on the droplet to which the light energy is applied.