NOVELTY - A hydrogen storage.supply system stores or supplies hydrogen by applying a hydrogenation reaction to an organic liquid hydrogen storage body and by applying a dehydrogenation reaction to the organic liquid hydrogen supply body by using a metal-supported catalyst.    USE - The hydrogen storage supply system efficiently stores and supplies the hydrogen. The organic liquid hydrogen storage body efficiently stores the hydrogen. The organic liquid hydrogen supply body efficiency releases the hydrogen. The hydrogen is supplied to a fuel battery.    ADVANTAGE - The hydrogen storage.supply system mixes no organic liquid hydrogen storage body with the organic liquid hydrogen supply body. The result efficiently stores and supplies the hydrogen. The hydrogen is efficiently supplied to the fuel battery. Supply amounts and the supply time intervals for the unit time of the hydrogen storage body and the hydrogen supply body and for the catalyst weight are appropriated controlled. Supply control is applied to reaction heat. The results efficiently store and supply the hydrogen. The organic liquid hydrogen storage body and the organic liquid hydrogen supply body have good transport, fluidity, and heat resistance, and cause no adverse effect on the environment, including the human body and easily separate and refine the hydrogen.    DETAILED DESCRIPTION - The hydrogen storage.supply system has: (a) a hydrogen storage body housing portion for housing the organic liquid storage body; (b) a hydrogen supply body housing portion for housing the organic liquid hydrogen supply body; and (c) a reaction container for applying the hydrogenation reaction to the organic liquid hydrogen storage body and for applying the dehydrogenation reaction to the organic liquid hydrogen supply body. The reaction container houses the metal-supported catalyst and has: (a) a supply means for intermittently supplying the organic liquid hydrogen storage body or the organic liquid hydrogen supply body with a given amount at given time intervals to the reaction container from the hydrogen storage body housing portion or the hydrogen supply body housing portion; and (b) a hydrogen separator for separating the hydrogen from the organic liquid hydrogen supply body or the organic liquid hydrogen storage body grown in the reaction container.