Mild temperature and atmospheric oxygen pressure assisted epoxidation of cyclohexene was achieved with a series of novel montmorillonite-supported Mn(II) complexes of pyridine Schiff-base ligands. The catalysts were characterized by IR, UV-Vis DRS, XRD, SEM and ICP. The heterogeneous catalysts were proved to promote the epoxidation of cyclohexene efficiently, affording the desired product epoxycyclohexane with a yield up to 92 %. The effects of various reaction conditions on the catalytic reaction were optimized. Repeated runs indicated that the catalysts were stable for 3 cycles without noticeable loss of their catalytic activity. SEM images of the samples (a) Montmorillonite and (b) Mn-L-1-Montmorillonite. A series of montmorillonite-supported Mn(II) complexes of Schiff-base ligands were synthesized and characterized by SEM, the catalytic reactivity of epoxidation of cyclohexene have also been investigated .