A　mesoporous　MCM-41　molecular　sieve　richened　tin　on　the　surface　was　prepared　by　a　grafting　reaction　of　SnBu4　on　the　surface　of　MCM-41　in　vacuum　followed　by　a　treatment　in　flow　of　oxygen.　Compared　to　SnMCM-41　with　comparable　ratio　of　Si/Sn　(Si/Sn　≈　100)　prepared　by　the　mechanical　commixture　of　nanometer　SnO2　with　MCM-41,　the　use　of　the　impregnation　of　MCM-41　with　SnCl4　solution　as　well　as　the　hydrothermal　synthesis　route,　the　obtained　sample　had　better　hydrothermal　stability　and,　presented　better　catalytic　activity,　higher　selectivity　of　diphenol　and　higher　chemical　availability　of　H2O2　in　hydroxylation　reaction　of　the　phenol.　Some　optimal　conditions　of　the　reaction　were　also　investigated　in　the　paper.