Abstract: A new polymer-bound complex catalyst, fumed silica supported poly-γ-(m-diphenylphosphinophenyl)propylsiloxane platinum complex, has been synthesized starting from γ-(m-chlorophenyl)propyltrimethoxysilane via phosphination with lithium diphenyl phosphide and then immobilized on silica followed by treating with potassium chloroplatinite. Nitrobenzene, 1-hexene, styrene and acrylnitrile were used as substrates to evaluate the catalytic behavior of the title catalyst in catalytic hydrogenation reaction. The structure of the catalyst was characterized by IR, XPSand elemental analysis.