NOVELTY - A micro-direct formic acid fuel cell comprises a liquid storage chamber, a sealing gasket, an anode collector plate, a cathode collector plate, a cathode gas diffusion layer, an anode diffusion layer, a membrane electrode (7) and an end plate. A sealing gasket is respectively arranged on the inner sides of the anode collector plate and the cathode collector plate. The membrane electrode is arranged between two sealing gaskets. The membrane electrode is provided with the cathode gas diffusion layer on a side located on the cathode collector plate.    USE - A micro-direct formic acid fuel cell.    ADVANTAGE - The fuel cell uses formic acid as the fuel, uses a proton exchange film coated with the catalysts as the membrane electrode, directly uses the air electrode, has simple structure, is disassembled conveniently, reduces the weight, and effectively collects the reaction heats.    DETAILED DESCRIPTION - A micro-direct formic fuel cell comprises a liquid storage chamber, a sealing gasket, an anode collector plate, a cathode collector plate, a cathode gas diffusion layer, an anode diffusion layer, a membrane electrode (7) and an end plate. A sealing gasket is respectively arranged on the inner sides of the anode collector plate and the cathode collector plate. The membrane electrode is arranged between two sealing gaskets. The membrane electrode is provided with the cathode gas diffusion layer on a side located on the cathode collector plate. The membrane electrode is provided with an anode diffusion layer on a side located on the anode collector plate. The end plate is arranged outside the anode collector plate. The liquid storage chamber is arranged between the anode collector plate and the end plate. The sealing gasket is arranged between the anode collector plate and the liquid storage chamber as well as between the liquid storage chamber and the end plate. The edges of the liquid storage chamber, the sealing gasket, the anode collector plate and the cathode collector plate are uniformly provided with circular holes for fixing. Channels through which the formic acid and the carbon dioxide flow are arranged at central of the anode collector plate. The channel area composes a collector portion of the anode collector plate to feed the formic acid and exhaust the gas product from the anode diffusion layer. The channels through which the air and the water flow are arranged at central of the cathode collector plate. The channel area composes the collector portion of the anode collector plate to feed the air and exhaust the water from the cathode gas diffusion layer. The liquid storage chamber and the sealing gasket are square, and are provided with the openings at center. A fuel and gas channel is arranged at central of the top of the storage chamber to inject the fuel and exhaust the reaction gas. The membrane electrode comprises a proton exchange film and a catalyst coated on two surface of the proton exchange film. The membrane electrode comprises the proton exchange film and the catalyst coated on two surface of the proton exchange film. The catalyst on an anode side is the anode catalyst. The anode catalyst is palladium/carbon, palladium-platinum/carbon, or platinum/carbon catalyst having 20-50 wt.% palladium. The catalyst on a cathode side is the cathode catalyst. The cathode catalyst uses the platinum/carbon catalyst containing 20-40 wt.% platinum. The anode catalyst has the metal carrying quantity of 0.5-2 mg/cm3, and the cathode catalyst has the metal carrying quantity of 0.5-2 mg/cm3.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a micro-direct formic fuel cell.    Membrane electrode (7)