A method for manufacturing an electrolytic capacitor including: forming a capacitor element having an anode foil and a cathode foil; impregnating the capacitor element with a dispersion solution containing particles of an electrically conductive solid or aggregates thereof and a dispersion solvent to form an electrically conductive solid layer having the particles of the electrically conductive solid or the aggregates thereof in the capacitor element ; and impregnating the capacitor element having the electrically conductive solid layer with a solvent containing no supporting salt.