An element for a solid electrolytic capacitor having low equivalent series resistance (ESR) and high capacitance per unit volume obtained by controlling the composition or the thickness of the silver paste forming a laminated structure on the anode substrate having a carbon paste layer on the surface. Using two kinds of silver pastes each having different wettability on the carbon paste layer and applying each silver paste on the side (edge) portions and face portions of an anode substrate, respectively, a desired layer thickness can be obtained as a whole. A solid electrolytic capacitor element preferably has a silver paste layer coating the side (edge) portions of the anode substrate which is thicker than the silver paste layer covering the face portions of the anode substrate, wherein a silver paste of composition having a water amount of 0.5 mass % or less is preferably used.