High-surface-area　and　well-ordered　mesoporous　Fe-incorporated　SBA-15　(xFe-SBA-15)　and　SBA-15-supported　FeO　(x)　(yFeO　(x)　/SBA-15)　with　the　Fe　surface　density　between　0.09　to　1.11　Fe-atom/nm(2)　have　been　prepared　using　the　one-step　synthesis　and　incipient　wetness　impregnation　methods,　respectively.　Physicochemical　properties　of　these　materials　were　characterized　by　means　of　numerous　techniques,　and　their　catalytic　activities　for　the　combustion　of　toluene　were　evaluated.　It　is　found　that　the　xFe-SBA-15　and　yFeO　(x)　/SBA-15　samples　possessed　rod-　or　chain-like　morphologies.　The　Fe　species　were　of　high　dispersion　when　the　Fe　surface　density　was　lower　than　0.76　Fe-atom/nm(2)　in　xFe-SBA-15　and　0.64　Fe-atom/nm(2)　in　yFeO　(x)　/SBA-15.　At　a　similar　Fe　surface　density　and　space　velocity,　the　xFe-SBA-15　catalysts　showed　better　activity　than　the　yFeO　(x)　/SBA-15　catalysts,　in　which　the　xFe-SBA-15　catalyst　with　Fe　surface　density　0.59　Fe-atom/nm(2)　performed　the　best.　It　is　concluded　that　the　good　performance　of　the　xFe-SBA-15　sample　with　Fe　surface　density　0.59　Fe-atom/nm(2)　was　associated　with　its　large　surface　area,　high　Fe　species　dispersion,　and　good　low-temperature　reducibility.