A hydrogen fuel supply system comprising a methanol aqueous solution particulates generator, spark-plasma heater, catalytic reactor, hydrogen separation unit, hydro-evaporating cooler, hydrogen compressor, hydrogen injection system, etc. By properly mixing methanol and water to form a methanol aqueous solution, then vibrated by a methanol aqueous solution particulates generator to form micro to nano sized particulates of aqueous-methanol, and the micro to nano sized particulates is then heated in high temperature by a spark-plasma heater, then through a catalytic reactor to form a gaseous mixture of hydrogen, carbon dioxide, and nitrogen. Then the hydrogen is separated by a hydrogen separation unit. Finally, the hydrogen is chilled by a hydro-evaporation cooler and then compressed by a hydrogen compressor. The resulting hydrogen can be supplied to hydrogen internal-combustion engines or hydrogen power generators by hydrogen injection systems.