The　catalytic　degradation　of　chlorinated　volatile　organic　compounds　(CVOCs)　at　low　temperatures　is　a　great　challenge.　Herein,　dichloromethane　(DCM)　oxidation　is　used　as　a　model　reaction,　CeCoOx　is　optimized　using　glycerol　hydrothermal　to　prepare　a　series　of　(x)CeCo-G　composites.　Experimental　exploration　shows　that　glycerol　modification　can　optimize　physical　properties　and　micromorphology.　Moreover,　the　strong　interaction　between　Co　and　Ce　components　in　(x)CeCo-G　leads　to　more　effective　generation　of　oxygen　vacancies　and　exposure　of　Co　species,　which　significantly　promotes　its　redox　and　oxygen　activation　capacity　and　provides　more　reactive　ox-ygen　species.　As　a　result,　(x)CeCo-G　exhibits　highly　excellent　catalytic　activity,　with　(0.5)CeCo-G　(0.5　is　the　mass　of　CeCoOx　added)　shows　the　best　activity,　with　T50　and　T90　values　of　196　degrees　C　and　236　degrees　C.　The　catalyst　also　exhibits　high　selectivity　and　durability.　Based　on　the　in-situ　DRIFT　studies,　the　catalytic　mechanism　of　the　prepared　materials　is　investigated　and　a　possible　reaction　route　for　the　oxidation　of　DCM　is　proposed.　This　work　provides　new　insights　into　the　catalytic　degradation　of　CVOCs.