Octahedral　layered　birnessite　(denoted　as　OL)　was　synthesized　by　the　oxidation-reduction　method　and　a　series　of　Cu-x/OL　catalysts　were　prepared　by　the　ion　exchange　method　with　various　Cu　loadings.　The　materials　were　characterized　by　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM),　N-2　adsorption-desorption,　hydrogen　temperature-programmed　reduction　(H-2-TPR),　X-ray　photoelectron　spectroscopy　(XPS),　thermogravimetric　(TG)　and　oxygen　temperature-programmed　desorption　(O-2-TPD)　techniques,　and　their　catalytic　activities　for　CO　and　ethyl　acetate　oxidation　were　evaluated.　The　results　show　that　OL　is　a　typical　octahedral　layered　structure,　and　the　doping　of　Cu　hardly　affects　the　structure　of　OL.　Moreover,　Cux/OL　samples　had　different　reducibility,　oxygen　mobility,　and　atomic　ratio　of　Cu2+/CuO,　(Mn2+　+　Mn3+)/Mn4+,　and　O-ads/O-latt　after　the　addition　of　Cu　to　OL.　Among　the　Cu-x/OL　samples,　the　Cu-5/OL　sample　showed　the　best　activity　for　the　catalytic　oxidation　of　CO　and　ethyl　acetate　(T-50　=　70　and　T-90　=　100　degrees　C　for　CO　oxidation;　T-50　=　160　degrees　C　and　T-90　=　200　degrees　C　for　ethyl　acetate　oxidation).　Cu-5/OL　showed　the　best　reducibility,　most　isolated　Cu2+　species,　highest　surface　(Mn2+　+　Mn3+)/Mn4+　atomic　ratio,　highest　chemisorbed　oxygen　species,　and　lowest　O-2　desorption　temperature.