NOVELTY - A polymer electrolyte fuel cell has membrane electrode joint component (I) containing fluorine-containing polymer (FP) having sulfonic acid group and catalyst. Component (I) is dissolved in solvent, and FP is dissolved. Soluble component containing FP and insoluble component containing catalyst, are separated. Alkali salt or alkaline earth salt is added to FP solution. Polymer electrolyte fuel cell material is recovered.    USE - For recovering material used for polymer electrolyte fuel cell of electric vehicle and solid polymer electrolyte film (both claimed).    ADVANTAGE - The recovery of catalyst metal and polymer electrolyte fuel cell material is easily enabled. The recycling of fluorine-containing polymer having sulfonic acid group is enabled.    DETAILED DESCRIPTION - A polymer electrolyte fuel cell has a membrane electrode joint component comprising an electrolyte film (a) and gas diffusion electrode (b). The electrolyte film (a) consists of fluorine-containing polymer having sulfonic acid group, and proton conductive polymer. The electrode (b) contains electrode catalyst having electroconductive support which supports catalyst metal. The membrane electrode joint component is dissolved in a solvent, and fluorine-containing polymer having sulfonic acid group is dissolved. Soluble component containing fluorine-containing polymer and insoluble component containing catalyst, are separated. The catalyst metal from the insoluble component is recovered by partition process. Alkali salt or alkaline earth salt is added to fluorine-containing polymer solution, and classified based on size and molecular weight using chromatographic column. The polymer electrolyte fuel cell material is recovered.    INDEPENDENT CLAIMS are included for the following:    (1) polymer electrolyte fuel cell; and    (2) manufacture of solid polymer electrolyte film.    DESCRIPTION OF DRAWING(S) - The figure shows the flow chart illustrating the recovery of polymer electrolyte fuel cell material. (Drawing includes non-English language text).