The purpose is to provide a technique which enables various kinds of conductive polymer composition to be dissolved in an organic solvent and to be used to form a conductive membrane on a target portion easily. Provided is a composite conductive polymer composition, a method of manufacturing the same, and a solution obtained by dissolving the composition in an aromatic solvent, ester-based solvent or ketone-based solvent. The composition is obtained by doping a π-conjugated polymer (β) with a polymer compound (A), wherein the polymer compound (A) is obtained from (a-1) a monomer having a sulfonic acid group and a polymerizable vinyl group in an amount of 20 to 60 mol %, (a-2) a polar monomer having a hydrophilic group and a polymerizable vinyl group in an amount of 20 to 60 mol %, and (a-3) another polymerizable monomer in an amount of 20 to 60 mol %, and the n-conjugated polymer (β) is obtained from a monomer compound selected from the formulas (I) to (III)
in the formula (I) to (III), at least one of R1 to R4 represent an alkoxy group of C1 to C10, and the other groups represent H, an alkyl group of C1 to C10, or an alkoxy group of C1 to C10; at least one of R5 and R6 represent an alkoxy group of C1 to C10, and the other group represents H, an alkyl group or an alkoxy group of C1 to C10, or R5 and R6 jointly represent an alkylenedioxy group of C1 to C8; and R7 represents H, an alkyl group of C1 to C6, or an aromatic ring group.