NOVELTY - A dry and solid-state hydrogen fuel source containing a solid metal hydride or a chemical hydride and a reaction-controlling agent is provided in solid state. A desired amount of a liquid reactant is delivered to contact and react with desired amount of the solid-state fuel source to produce hydrogen gas, and the hydrogen gas is store and supplied.    USE - Storage and supply method of hydrogen gas used for fuel cell for powering-vehicle or microelectronic device.    ADVANTAGE - The hydrogen gas is efficiently stored and supplied.    DETAILED DESCRIPTION - A dry and solid-state hydrogen fuel source containing solid metal hydride or chemical hydride and reaction-controlling agent is provided in solid state. A desired amount of a liquid reactant is delivered to contact and react with desired amount of the solid-state fuel source to produce hydrogen gas, and the hydrogen gas is store and supplied. The hydrogen fuel source contains lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, beryllium hydroxide, magnesium hydroxide, calcium hydroxide, strontium hydroxide and/or barium hydroxide. The chemical hydride is sodium borohydride, lithium borohydride, potassium borohydride, ammonium borohydride, sodium aluminohydride, lithium aluminohydride, potassium aluminohydride, sodium galliumhydride, lithium galliumhydride and/or potassium galliumhydride, alternately zinc borohydride, magnesium borohydride, calcium borohydride, zinc boron tetramethoxyhydride and/or calcium boron hexaethoxyhydride. The metal hydride is lithium, sodium, potassium, magnesium, nickel, iron and/or aluminum. The reaction controlling agent contains acid or metal salt, preferably salicylic acid, amino acid, glutamic acid, adipic acid, succinic acid, chlorobenzoic acid, tartaric acid, malic acid, ascorbic acid, polyaspartic acid, ( alpha )-zirconium phosphate, sulphated zirconia, tungsten oxide supported on zirconia, and/or heteropolyacid, alternately citric acid.