Aromatic amine compounds and their derivatives are important intermediates of fine chemicals like dye and medicine. The former hydrogenation catalyst has many problems, such as environment pollution caused by old technology, strict reaction condition, complicated equipment, bad property of catalyst and so on. Holy [1] firstly reported the hydrogenation of nitrobenzene on modified polystyrene Pd catalyst. But how to improve the activity, selectivity and stability of the polymer supporter catalyst needs to studyfurther. We prepared a series of polymer supported catalysts by the methods of adsorption and mechanical mixting, selected a high active catalyst Pd-AH-1 by observing the hydrogenation of nitrobenzene. Aromatic amine compounds and their derivatives are important intermediates of fine chemicals like dye and medicine. The former hydrogenation catalyst has many problems, such as environment pollution caused by old technology, strict reaction condition, complicated equipment, bad property of catalyst and so on. Holy [1] initially reported the hydrogenation of nitrobenzene on modified polystyrene Pd catalyst. But how to improve the activity, selectivity and stability of the polymer supporter catalyst needs to studyfurther. We prepared a series of polymer supported catalysts by the methods of adsorption and mechanical mixting , selected a high active catalyst Pd-AH-1 by observing the hydrogenation of nitrobenzene.