A method for manufacturing a solid electrolytic capacitor, capable of joining a bolster member interposed between an anode lead and an anode lead frame to the anode lead frame with good adhesion property and high positional accuracy where a bolster member is obtained from a ladder-shaped frame such that a width of the bolster member in a direction perpendicular to a lead-out direction of an anode lead is larger than a width of an anode lead frame, and the bolster member is aligned with the anode lead frame while being chucked, and then is joined to the anode lead frame.