A method for producing a ceramic substrate that includes a substrate body having ceramic layers and columnar projecting electrodes on a first primary surface of the substrate body. The method includes a step of preparing electrode formation sheets for forming the projecting electrodes, a step of perforating the electrode formation sheets with through holes and filling the through holes with a first electrically conductive paste containing a first electrically conductive powder, a step of building a composite multilayer body by stacking ceramic green sheets and the electrode formation sheets on a first primary surface of the stack of ceramic green sheets. The first electrically conductive powder contains electrically conductive metal(s) and anti-sintering ceramic(s) that controls the sintering of particles of the electrically conductive metal(s), with at least part of the surface of the particles of the electrically conductive metal(s) covered with the anti-sintering ceramic(s).