Provided is a method for producing a fluoropolymer aqueous dispersion, the method comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (I) containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I): CX.sup.1X.sup.3CX.sup.2R(CZ.sup.1Z.sup.2-A.sup.0).sub.m to obtain a polymerization dispersion containing a fluoropolymer excluding the polymer (I), the polymer (I), and the aqueous medium, then mixing the polymerization dispersion, a nonionic surfactant, and a fluorine-free water-soluble electrolyte to prepare an unconcentrated composition, and concentrating the unconcentrated composition to thereby obtain an aqueous dispersion containing the fluoropolymer.