Organic peroxides are frequently used as oxidants in organic synthesis especially for the epoxidation of electrondeficient alkenes e.g. α,β-unsaturated carbonyl compounds. Alkaline solutions of hydrogen peroxide and tert-butyl hydroperoxide are powerful nucleophilic oxidizing agents for this purpose. In the epoxidation of α,β-enones, peroxides are superior reagents to organic peracids with respect to their mildness, good yields and absence of by-products. Epoxidation of electron-deficient alkenes is normally sluggish with electrophilic oxidizing agents such as mCPBA. While hydrogen peroxide has been used frequently for oxidation of organic compounds, there is some hazard connected with the use of concentrated solutions of H2O2. On the other hand, general interest is the development of new clean oxidation methods which can supply the needs for improvements in epoxide synthesis. Generally, these needs concern more selective epoxidation methods with preferably heterogeneous recyclable, and with safe, clean and regenerable oxidants. Two complexes of H2O2 with urea (UHP) and DABCO-di-N-oxide are known reagents but they have some limitations involved in the selection of proper solvent to conduct the reactions under heterogeneous conditions. Polymer supported reagents have had much attentions in recent years due to their selectivity, stability and easy handling. They could serve as heterogeneous, clean and regenerable reagents in the epoxidation reactions. Preparation of polymer complexes of hydrogen peroxide was also reported but we could not find any synthetic use in the literature. Also the epoxidation of olefins with a crosslinked polystyrene-supported tert-butyl hydroperoxide have been investigated but it suffers from low yields, low selectivity and long reaction times. A number of epoxidation methods have been developed for α,β-unsaturated carbonyl compounds which involve sodium peroxide, Keggin heteropoly compounds with aqueous H2O2 in acetonitrile, 10 hydrogen peroxide in ionic liquid/water biphasic system, ureahydrogen peroxide, dioxirane and many asymmetric methods. In this paper we report an efficient epoxidation of α,β-enones with a polymer supported hydrogen peroxide under heterogeneous conditions.