Using　hexadecyl　trimethyl　ammonium　bromide　(CTAB)　and　TX-100　mixed　surfactants　as　a　template,　ordered　Ce-MCM-48　molecular　sieves　with　up　to　12%　cerium　(mole　fraction)　content　were　synthesized　by　adding　a　cerium　source　in　the　process　of　hydrothermal　crystallization.　The　synthesized　material　was　characterized　by　X-ray　diffraction,　N2　adsorption-desorption　isotherm,　transmission　electron　microscope　and　ultraviolet-visible　spectroscopy.　The　results　show　that　the　products　with　high　cerium　content　still　retain　their　cubic　mesopore　structure　and　high　Brunauer-Emmett-Teller　surface　area　(1185-331　m2/g).　Cerium　is　bound　into　the　framework　position　and/or　into　the　walls　of　MCM-48　by　Ce4+.