Ce-Ni-SBA-15　mesoporous　molecular　sieves　was　successfully　synthesized　by　a　microwave　method,　and　characterized　by　X-ray　diffractometer　(XRD),　Infrared　spectroscopy　(FT-IR),　DR　ultraviolet　and　visible　spectrophotometry　(DRS),　transmission　electron　microscope　and　low　temperature　N2　adsorption-desorption　method.　The　result　showed　that　the　Ce　and　Ni　were　successfully　incorporated　into　the　framework　of　SBA-15　molecular　sieves.　Then　the　Ce-Ni-SBA-15　was　loaded　with　Pt　and　applied　in　the　CO　oxidation　reaction,　and　presences　high　catalytic　activity.　The　result　shows　that　the　lowest　complete　conversion　temperature　of　the　CO　on　Pt/Ce-Ni-SBA-15　catalyst　is　227°C,　which　is　39°C　lower　than　that　of　the　Pt/SBA-15.　Hence　one　can　conclude　that　Ce-Ni-SBA-15　is　a　superior　support　for　catalyst.