Au/Ti-HMS　was　prepared　by　in　Situ　method,　NH3　deposition-precipitation　(NH3　DP)　and　Urea　deposition-precipitation　(Urea　DP),　respectively.　The　catalysts　were　characterized　by　a　series　of　techniques　including　ICP,　powder　XRD,　N-2　Sorption.　W-visible　spectroscopy,　TEM　and　H-2-TPR.　Using　n-octane　containing　BT,　DBT　and　4,6-DMDBT　as　model　compound.　the　performance　of　the　catalysts　ill　oxidative　desulfurization　(ODS)　using　in　situ　generated　H2O2　from　H-2　and　O-2　were　investigated.　The　results　show　that　preparation　method　influences　porous　structure　of　the　Support　and　gold　particles　size　In　situ　sample　has　maintained　the　intrinsic　structure　of　Ti-HMS.　whereas,　the　gold　particles　are　not　as　uniform　and　small　as　that　of　DP　sample.　NH3　DP　sample　still　possesses　the　wormhole　structure　of　HMS　despite　the　absence　of　typical　XRD　peak.　The　mesoporous　structure　of　urea　DP　sample　has　been　damaged　seriously.　Au3+　on　outer　surface　of　the　support　is　easier　to　be　reduced　than　that　ill　pores,　as　confirmed　by　H-2-TPR　In　addition,　the　three　samples　exhibit　different　catalytic　activities　in　ODS　using　in　situ　H2O2　as　oxidant　For　the　removal　of　BT　and　DBT,　Au/Ti-HMS　(NH3　DP)　exhibits　the　highest　catalytic　activities.　Regarding　the　removal　of　4.6-DMDBT,　the　optimum　catalyst　is　Au/Ti-HMS　(In　situ):　however.　Au/Ti-HMS　(Urea　DP)　nearly　loses　catalytic　activity　(C)　2009　Elsevier　B.V.　All　rights　reserved.