A fluororesin composition including a tetrafluoroethylene/hexafluoropropylene-based copolymer and 0.01 to 3 parts by mass per 100 parts the copolymer of a polytetrafluoroethylene having a standard specific gravity of 2.15 to 2.30, and being obtained by mixing an aqueous dispersion of the tetrafluoroethylene/hexafluoropropylene-based copolymer with an aqueous dispersion of the polytetrafluoroethylene, causing coagulation, drying the polymer mixture and melt-extruding the same.