Abstract: As the most promising hydrogen storage material, hydrous hydrazine (N₂H₄·H₂O) has attracted extensive attention and interest of researchers. In this paper, NiPt bimetallic supported SBA-15 (mesoporous silica) catalysts with different metal ratios were prepared by a simple impregnation reduction method, and their catalytic hydrous hydrazine dehydrogenation performance was studied. The research results show that Pt and Ni form an alloy during the preparation of the catalyst, the electronic synergistic effect of the two metals can effectively promote the catalytic performance of the catalyst, and the interaction between SBA-15 and the metal active components helps to improve the catalytic performance and cycling stability of catalysts. The activation energy of the Pt₆Ni₄/SBA-15 catalyst is 45.6 kJ/mol and the TOF value is 2123.3 h⁻¹, which are better than most of the reported catalysts.