The utility model discloses a high -pressure hydrogen gas feeding device, including inclosed built -in laNi5 material store hydrogenation bed, output pipeline with storing spatial join in the hydrogenation bed all sets up first high -pressure valve and pressure sensor on output pipeline, wraps up this heater of storing a hydrogenation setting to reach the temperature controller with heater connection. The utility model discloses owing to adopt the solid hydrogen storage material to store hydrogen, neither with storing the required big and heavy steel bottle of high -pressure hydrogen gas, need not deposit the temperature condition that the liquid hydrogen that kind is extremely low again, make alloy and H -H reaction generate metal hydride and giving off heat in the time of need storing hydrogen, by heating or decompression make to store and release in hydrogen wherein in the time of need be with hydrogen.