TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The solvent is at least one of 1,1,2-trichloro-1,2,2-trifluoroethane, N,N-dimethylformamide, dimethylacetamide, N-methylformamide, dimethyl sulfoxide, N-methyl pyrrolidone, hexamethylphosphoramide, acetone, water, ethanol, methanol, propanol, isopropanol, glycol or glycerol. The content of the perfluoro ion exchange resin in the dispersion liquid is 10-40 wt.%.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The fuel cell membrane further comprises polytetrafluoroethylene microporous membrane reinforced material, preferably polytetrafluoroethylene microporous membrane having a void ratio of 75-95%, preferably 85-95% and a pore size of 0.1-5 mu m, preferably 0.5-2 mu m. Preferred Method: The perfluorosulfonic acid resin is prepared by polymerizing 1,1,2,2-tetrafluoro-2-(1,1,1,2,3,3-hexafluoro-3-(1,2,2-trifluorovinyloxy)propan-2-yloxy)ethanesulfonyl fluoride (I), 1,1,2,2,3,3-hexafluoro-3-(1,2,2-trifluorovinyloxy)propane-1-sulfonyl fluoride (II), 1,1,2,2-tetrafluoro-2-(1,2,2-trifluorovinyloxy)ethanesulfonyl fluoride (III) and/or 1,1,2,2,3,3,4,4-octafluoro-4-(1,2,2-trifluorovinyloxy)butane-1-sulfonyl fluoride (IV) and carrying out acid hydrolysis of the obtained polymer, where the molecular weight of the polymer is 140000-500000. The perfluorophosphoric acid resin is obtained by polymerizing dimethyl 1,1,2,2-tetrafluoro-2-(1,1,1,2,3,3-hexafluoro-3-(1,2,2-trifluorovinyloxy)propan-2-yloxy)ethylphosphonate (V) and carrying out acid hydrolysis of the obtained polymer. The perfluorosulfonic acid-perfluorophosphoric acid copolymer resin obtained by polymerizing (I), (II), (III) (IV) and/or (V), and carrying out acid hydrolysis of the obtained polymer. The ion exchange capacity of the perfluoro ion exchange resin is 0.85-1.6 mmol/g, preferably 1.05-1.55 mmol/g. The content of free radical additive in the fuel cell membrane is 0.1-20 wt.%, preferably 1-8 wt.%. The preparation method comprises dispersing the ion-exchange resin in a solvent to obtain dispersion liquid, adding degradable oxygen-derived free radical additive to obtain a mixed solution, then performing step (b) comprising, taking the mixing solution and film forming by solution casting, solution pouring, screen painting, spin coating, spray coating on the reinforcing material, heating the solvent to form a fuel cell membrane with microporous reinforced material, or step (c) comprising taking polyfluortetraethylene microporous reinforced material, impregnating in the dispersion liquid to obtain microporous reinforced material soaked resin, volatilizing the solvent to obtain the fuel cell membrane with microporous reinforced material.