A highly efficient oxidation of cyclohexane to cyclohexanol and cyclohexanone is accomplished over calcined vanadium phosphorus oxide (VPO) catalysts in a relatively mild condition using tert-Butyl hydroperoxide under a atmosphere condition. This heterogeneous catalyst at the end of the reaction is easily separated by the least cost of the product. This reaction is investigated in a polar and nonpolar solvent with different dielectric constant. After catalytic tests and determining the best catalyst ,detection and analysis will be done by analyzing XRD, SEM, TGA, IR, .... The activity and selectivity of vanadium phosphate (VPO) catalysts on the mesoporous KIT-6 support for green oxidation of cyclohexane to cyclohexanone and cyclohexanol were studied using H2O2.