Uniform　hollow　spherical　rhombohedral　LaMO3　and　solid　spherical　cubic　MOx　(M　=　Mn　and　Co)　NPs　were　fabricated　using　the　PMMA-templating　strategy.　Hollow　spherical　LaMO3　and　solid　spherical　MOx　NPs　possessed　surface　areas　of　21-33　and　21-24　m(2)/g,　respectively.　There　were　larger　amounts　of　surface-adsorbed　oxygen　species　and　better　low　temperature　reducibility　on/of　the　hollow　spherical　LaMO3　samples　than　on/of　the　solid　spherical　MOx　samples.　Hollow　spherical　LaMO3　and　solid　spherical　MOx　samples　outperformed　their　nanosized　counterparts　for　oxidation　of　CO　and　toluene,　with　the　best　catalytic　activity　being　achieved　over　the　solid　spherical　Co3O4　sample　for　CO　oxidation　(T-50%　=　81　degrees　C　and　T-90%　=　109　degrees　C)　at　space　velocity　=　10　000　mL/(g　h)　and　the　hollow　spherical　LaCoO3　sample　for　toluene　oxidation　(T-50%　=　220　degrees　C　and　T-90%　=　237　degrees　C)　at　space　velocity.　=　20　000　mL/(g　h).　It　is　concluded　that　the　higher　surface　areas　and　oxygen　adspecies　concentrations　and　better　low　temperature　reducibility　are　responsible　for　the　excellent　catalytic　performance　of　the　hollow　spherical　LaCoO3　and　solid　spherical　Co3O4　NPs.　We　believe　that　the　PMMA-templating　strategy　provides　an　effective　route　to　prepare　uniform　perovskite-type　oxide　and　transition　metal　oxide　NPs.