NOVELTY - The pressure of a liquefied natural gas is increased and introduced into a heat exchanger (2) and heated. Portion(s) of the vaporized natural gas is supplied to a hydrogen gas producing apparatus (10) and a hydrogen gas is produced. The hydrogen gas is introduced into the heat exchanger and pre-cooled. The cold hydrogen gas is supplied to a hydrogen storage apparatus (20) and is stored under low temperature.    USE - For manufacturing hydrogen gas for motor fuel and machine fuel.    ADVANTAGE - A hydrogen gas is manufactured efficiently, with reduced cooling power for pre-cooling the produced hydrogen gas. Since the pressure of liquefied natural gas is increased, power for compressing the gas raw material is reduced.    DETAILED DESCRIPTION - The pressure of a liquefied natural gas is increased and introduced into a heat exchanger (2) and heated. Portion(s) of the vaporized natural gas is supplied to a hydrogen gas producing apparatus (10) and a hydrogen gas is produced. The hydrogen gas is introduced into the heat exchanger and pre-cooled to -50 degrees C or less by heat exchanging with the liquefied natural gas. The cold hydrogen gas is supplied to a hydrogen storage apparatus (20) and is stored under low temperature.    An INDEPENDENT CLAIM is included for hydrogen gas manufacturing equipment containing a heat exchanger and a supply unit which supplies at least one portion of the liquefied natural gas to the hydrogen gas producing apparatus. The heat exchanger supplies cold hydrogen gas to the hydrogen storage apparatus. A pressure raising apparatus (1) which increases the pressure of the liquefied natural gas is provided. The hydrogen storage apparatus and the liquefied natural gas are heat exchanged.    DESCRIPTION OF DRAWING(S) - The figure shows the outline block diagram of the hydrogen gas manufacturing equipment. (Drawing includes non-English language text).    pressure raising apparatus (1)    heat exchanger (2)    hydrogen gas producing apparatus (10)    hydrogen storage apparatus (20)