A　series　of　Pt/TiO2　catalysts　were　prepared　by　the　impregnation　(IM),　dry　ball　mill　(DB),　or　wet　ball　mill　(WB)　methods,　and　their　catalytic　activity　for　the　oxidation　of　CO　was　evaluated.　The　structure　and　redox　properties　of　the　catalysts　were　investigated　by　N-2　desorption,　XRD,　SEM,　TEM,　XPS,　H-2-TPR,　SO2-TPD,　and　CO　chemisorption　analysis.　It　was　determined　that　the　preparation　method　affects　the　physical　structure　of　the　catalyst　and　the　particle　size　and　dispersion　of　Pt　on　the　catalyst　surface.　The　catalyst　prepared　by　the　impregnation　method　had　a　more　suitable　physical　structure　than　the　other　catalysts,　with　a　smaller　particle　size,　a　higher　dispersion　of　Pt　on　the　surface,　and　the　lowest　strength　of　SO2　adsorption.　Pt/TiO2(IM)　catalysts　presented　the　best　catalytic　activity　for　the　oxidation　of　CO　in　simulated　sintering　flue　gas　at　140　degrees　C,　as　well　as　better　sulfur　and　water　resistance　with　simulated　sintering　flue　gas　containing　50　ppm　of　SO2　and　15%　water　vapor.