A　series　of　catalytic　coatings　consisting　of　MnOx-CeO2　and　TiO2　support　were　prepared　by　atmospheric　plasma　spraying,　which　was　aimed　at　the　application　of　selective　catalytic　reduction　(SCR)　of　NOx.　The　effect　of　the　load　of　active　component　on　the　coating　was　firstly　studied.　The　results　showed　that　all　the　coating　presented　the　highest　catalytic　activity　at　approximately　350　degrees　C　and　the　coating　with　the　composition　of　20MnO(x)/5CeO(2)/TiO2　(wt%)　achieved　the　most　powerful　performance.　The　coating　was　then　prepared　on　a　wire-mesh　structure　substrate,　which　can　be　easily　assembled　as　a　gas　filter.　The　results　showed　that　the　specific　surface　area　was　greatly　increased　resulting　in　the　significant　improvement　of　the　catalytic　activity　of　the　coating.　This　strategy　offered　a　promising　possibility　of　removing　NOx　and　particulate　fliting　simultaneously　in　industrial　applications.