A　novel　bimodal　mesoporous　molecular　sieve　(BMMS)　supported　Co(III)　complex　with　the　nitrogen　donor　ligand　porphrins　was　prepared　at　room　temperature　via　grafting　method.　The　resulted　host/guest　compounds　were　characterized　by　XRD,　nitrogen　adsorption　and　TG-DTA.　The　results　indicated　that　structure　of　BMMS　was　retained,　and　cobalt-porphyrin　was　highly　dispersed　in　the　pore　surface　of　the　modified　BMMS.　In　addition,　TG-DTA　data　suggested　that　the　stability　of　cobalt-porphyrin　was　also　enhanced　by　the　grafting　method　for　BMMS.　The　catalytic　behavior　of　the　BMMS-supported　Co(III)　will　be　investigated　by　oxidation　of　cyclohexane　and　cyclohexene.