A problem is to provide a method and a device for producing a conductive polymer conductor according to which a conductive polymer can be easily adhered to a base material with high accuracy.A solution is a production device 10 equipped with a heating means 11 for heating a base material M, a raw material application means 12 for applying, to the base material M, a raw material solution containing a monomer of the conductive polymer, and a producing solution application means 13 for applying, to the base material M, a producing solution containing an oxidizing agent for promoting polymerization of the monomer, a dopant for developing electrical conductivity in the conductive polymer, and a viscosity improver for improving viscosity. The raw material solution is applied thereto after heating the base material M or while heating the base material M, and then the producing solution is applied thereto.
