Novel　pure　silica　mesoporous　MSU-2　molecular　sieve　was　synthesized　using　Triton　X100　as　a　neutral　surfactant　template,　tetraethylorthosilicate　(TEOS)　as　a　silica　source,　followed　by　removing　the　pore-forming　agent　by　calcinations.　Then,　three　samples　doped　with　Bi　were　prepared　by　different　methods　(ion-migration,　impregnation,　physically　mixing).　Characterization　results　from　X-ray　diffraction　(XRD)　and　Ultraviolet　visible　diffuse　reflectance　spectroscopy　(UV-Vis)　indicated　that　all　the　samples　possessed　non-ordered　wormholeTike　pore　structures　with　no　long-range　symmetry　and　the　incorporation　of　Bi3+　into　the　zeolite　framework,　and　Bi　atoms　were　highly　dispersed　in　the　silica-based　structure　of　MSU-2.　Catalytic　activity　evaluation　of　the　materials　in　the　oxidation　of　styrene　to　benzaldehyde　with　H2O2　in　the　methanol　medium　was　also　reported.　It　was　found　that　the　catalyst　prepared　through　ion-migration　had　the　best　activity　due　to　the　better　dispersion　of　Bi　on　the　inner　surface　of　MSU-2　and　formation　of　more　special　structure,　which　showed　more　catalytic　activity　than　those　prepared　by　other　methods.