Through analysis of the hydriding/dehydriding process of hydrogen storage material, an apparatus for measuring hydrogen storage properties was designed and set up. This apparatus can be employed to measure the curves of the hydriding/dehydriding dynamics, the PCT curves and the cycle life for hydrogen storage material. The hydriding/dehydriding properties of LaNis was acquired by this apparatus. The result indicates that this design principle of apparatus is reasonable; LaNi5 has excellent hydriding kinetics properties however, the cycle life is rather bad because of quite fast capacity decrease after 60 ab-/desorption cycles.