NOVELTY - A low-temperature liquid-phase fuel reforming device comprises a reaction chamber comprising fuel, heat exchangers, electrolysis chamber, and a catalyst solution, where the catalyst solution is mixed with small organic molecules to obtain mixture, followed by transferring the mixture into the reaction chamber to carry out a chemical reaction to generate low-valence-state fuel solution with reducibility, oxidizing the small organic molecules of the fuel into carbon dioxide and water, when the conversion of the fuel is completed, and cooling low-valence-state fuel solution with reducibility.    USE - Low-temperature liquid-phase fuel reforming device.    DETAILED DESCRIPTION - A low-temperature liquid-phase fuel reforming device comprises a reaction chamber comprising fuel, heat exchangers, electrolysis chamber, and a catalyst solution, where the catalyst solution is mixed with small organic molecules to obtain mixture, followed by transferring the mixture into the reaction chamber at 20-200 degrees C under a pressure of 0.1-20 MPa to carry out a chemical reaction to generate low-valence-state fuel solution with reducibility, oxidizing the small organic molecules of the fuel into carbon dioxide and water, when the conversion of the fuel is completed, cooling low-valence-state fuel solution with reducibility, transferring the cooled solution to the heat exchanger and electrolytic cell to electrolyze the solution at a certain voltage generated by a low-voltage power supply to obtain hydrogen at a cathode region, when the fuel solution with reducibility is re-oxidized to a high-valence catalyst solution at anode region, outputting hydrogen as a product of the reforming device to the fuel cell, transferring the high-valence catalyst solution through the heat exchanger into the reaction chamber to react with fuel to form a complete circulation system, or transferring directly to the electrolytic cell without intermediate cooling after the fuel solution passed through the heat exchanger as fluid fuel of fuel cell having two output modes, output mode is high-purity hydrogen for hydrogen fuel cells, the another output mode is fuel solution with reducibility for flow fuel cell, the working of the entire reforming device in system is under control of controller.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a low-temperature liquid-phase fuel reforming device.