A conductive organic thin film comprising terminal bond radicals conjugate-bonded with the surface of a base material (1) or the surface of a base layer (2) formed on the base material, conjugate bond radicals, and organic molecules containing alkyl radicals between the terminal bond radicals and the conjugate bond radicals, wherein the organic molecules are oriented, and the conjugate bond radicals are polymerized with the conjugate bond radicals of other molecules to form a conductive network (34). The network (34) is formed of polypyrrole, polythienylene, polyacetylene, polydiacetylene or polyacene. The polymerization of conjugate bond radicals uses electrolytic oxidation polymerization, catalyst polymerization, and energy beam irradiation polymerization. Accordingly, a conductive organic thin film having conductivity higher than conventional organic conductive films and a production method therefor, and an electrode, cable and electronic device using it are provided.