Sodium borohydride (NaBH₄) has attracted more attention as onboard hydrogen generator for fuel cell power source of portable devices and automobiles due to its high theoretical hydrogen content and the excellent stability at ambient temperature. High-purity hydrogen can be released controllably from the hydrolysis of NaBH₄ alkaline solution with aid of certain catalysts[1]. Therefore, various of catalysts have been developed to catalyze the hydrolysis of NaBH₄ solution [2]. Among them, Ru was reported to exhibit high acivity towards to the hydrolysis of NaBH4 solution[3-4]. Ion exchange resin beads was used as support to improve dispersion and stability of Ru catalyst in alkaline solution, but the activity of Ru catalyst was limited by low surface area of ion echange beads. In order to further improve the activity and stability of Ru catalyst, three-dimensional Ni-foam was introduced to be substrate of Ru catalyst. Ni foam has highly porous structure, good thermal conductivity and chemical stability under the hydrolysis conditions. Two preparation methods: chemical plating and electroplating, were adopted to deposit the Ru on the surface of Ni foam. It was revealed that the Ru/Ni foam composite has very good dispersion and coating condition by analyzing its structure and component of the catalysts. The hydrogen generation measurement showed that the average hydrogen generation rate was 4726 mL min^-1g^-1 in 15 wt. % NaBH₄ and 3 wt.% NaOH solution at ambient temperature. Moreover, this predominant hydrogen generation rate remained stable more than 7.5 hours. The enhanced activity could be attributed to large active surface area, excellent electron conductivity and even dispersion of Ru catalyst.