Pumice is a porous, natural glass formed from volcanic activity and contains relatively high concentrations of silica, aluminum, and iron. It was selected as the catalyst in the present study because of its excellent chemical and configurable properties, such as high mechanical strength and chemical stability. As an alternative to other support materials such as sand, the advantages of pumice particles are that they are highly porous (pore volumes up to 85%) and have higher surface areas (about 168 m 2 g _1 ), which may immobilize more amounts of catalysts thus providing more reaction sites on a mass basis for the oxidation of alcohols . To our knowledge, the use of original or surface-modified pumice particles (Fe 2 O 3 /pumice,MnO 2 /pumice) for the catalytic oxidation of alcohols in waters has not been investigated before. Without any organic solvent, the catalytic performance of pumice was investigated in selective oxidation of alcohols with hydrogen peroxide (H 2 O 2 ), and the effects of reaction temperature, reaction time, dosage of catalyst, dosage of H 2 O 2 on catalytic selective-oxidation of alcohols were investigated. The results showed that the conversion of alcohols and the selectivity aldehydes were about 48- 97% and about 75- 98% respectively under 90?c for 6 h in water. At the same time, the catalyst was very stable and could be reused for more than five times. In the next part an environmentally benign oxidation of alcohols to aldehydes with hydrogen peroxide as oxidant and Fe 2 O 3 /pumice,MnO 2 /pumice as catalysts was conducted under solvent-free condition these catalysts howed excellent catalytic activity exhibiting high conversion of alcohols , nearly 100% selectivity .to aldehydes at60?C and 75 ?C for. Fe 2 O 3 /pumice and MnO 2 /pumice respectively This catalysts can be recovered and reused for three times without a significant loss in its activity and selectivity.