Mesoporous　yLaCoO(3)/SBA-15　(y　=　10-50　wt%)　catalysts　were　prepared　and　characterized　for　the　combustion　of　toluene　and　ethyl　acetate　(EA).　The　results　show　that　well-ordered　mesoporous　LaCoO3/SBA-15　catalysts　of　high　surface　areas　(338-567　m(2)/g)　could　be　fabricated　by　a　facile　in　situ　method　of　hydrothermal　treatment.　The　particles　of　perovskite-type　LaCoO3　were　highly　dispersed　on　the　walls　of　pore　channels.　The　ordered　mesoporous　structure　and　high　dispersion　of　LaCoO3　are　beneficial　to　the　adsorption　and　activation　of　toluene　and　EA　molecules.　We　found　that　in　terms　of　specific　activity,　the　in　situ　fabricated　35LaCoO(3)/SBA-15　and　40LaCoO(3)/SBA-15　is,　respectively,　superior　to　35LaCoO(3)/SBA-15_imp　(generated　by　incipient　wetness　impregnation　method)　and　bulk　LaCoO3　(prepared　by　sol-gel　method)　in　catalytic　performance.　Based　on　the　above　results,　we　conclude　that　the　excellent　performance　can　be　attributed　to　the　good　dispersion　of　highly　reducible　LaCoO3　species　in　yLaCoO(3)/SBA-15.　(C)　2008　Elsevier　B.V.　All　rights　reserved.