In　this　paper,　the　preparation　of　V2O5-MoO3/TiO2-expanded　graphite　(EG)　by　different　methods　was　investigated　to　enhance　the　H2O　resistance　in　SCR　reaction.　The　catalyst　with　doping　of　EG　by　high　shear　method　showed　the　best　SCR　performance.　BET,　TEM,　XPS,　H-2-TPR,　NH3-TPD　and　FT-IR　were　used　to　analyze　the　physicochemical　characteristics　of　the　prepared　catalysts.　The　results　indicated　that　TiO2　particles　were　distributed　uniformly　with　EG　by　high　shear　method,　which　enhanced　the　surface　area,　increased　Bronsted　and　Lewis　acid　sites　and　raised　the　VO2+　and　adsorbed　oxygen　species　on　the　surface.　It　was　found　that　even　with　the　addition　of　H2O　(20　%)　and　SO2　at　low　temperature,　the　catalyst　doping　of　EG　by　high　shear　method　maintained　about　90　%　NO　conversion.　In　addition,　in-situ　DRIFT　spectra　results　showed　that　the　NH3-SCR　reaction　over　Cat-1　and　Cat-2　followed　the　E-R　and　L-H　mechanism,　and　the　NH3　and　NOx　adsorbed　species　on　the　surface　of　Cat-2　possessed　higher　activity　in　SCR　reaction　than　Cat-1.