NOVELTY - The structure has an anode insulating buffer plate, an anode conducting plate, a front plate, an anode flow field assembly, a double effect membrane electrode of a double effect membrane electrode assembly, a cathode flow field assembly, a back water baffle, a cathode conducting plate and a cathode insulating buffer plate piled in turn to form a cell stack. An outer edge of each of front and back terminal plates is larger than other components of the cell stack, and has four edge holes projecting from the cell stack, where the holes are equipped with screws for locking the cell stack.    USE - Integral regenerative fuel cell structure for a transportation field and a refueling station.    ADVANTAGE - The structure combines a fuel cell and water electrolysis cell, and can serve as the fuel cell and the water electrolysis cell separately and can generate electricity or hydrogen and oxygen separately, and meet requirements on transportation or stationary type.    DETAILED DESCRIPTION - The front terminal plate and the back terminal plate are made of hard aluminum alloy or stainless steel. The anode flow field assembly and the cathode flow field assembly comprise a double-sided/single-sided grooved flow field plate made of corrosion-proof metal, conductive ceramics or polymer material. The double effect membrane electrode assembly is prepared by soaking a dispersion layer in moisture repellent that is PTFE or fluorinated ethylene propylene, preparing a hydrogen electrode dispersion layer by spraying carbon powder, polyvinylidene fluoride emulsion and prepared dispersion layer slurry to a carbon paper after a hydrophobic treatment, preparing a hydrogen electrode catalyst layer and an oxygen catalyst layer, and using thin-layer polymer material such as polyimide and polysulfone. The oxygen catalyst layer is prepared by preparing slurry of composite catalyst and binder i.e. Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) resin, automatically spraying a PTFE membrane with a catalyst layer and performing drying and sintering processes, where the catalyst is a composite metal catalyst consisting of oxygen evolution catalysts of platinum black and ruthenium, iridium, titanium, zirconium, tungsten, tantalum, niobium, hafnium or oxide of iridium, titanium, zirconium, tungsten, tantalum, niobium, hafnium.    DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of an integral regenerative fuel cell structure.