Constructing　a　hollow　structured　Ce-based　catalyst　is　an　effective　way　to　result　in　an　efficient　catalytic　system　for　the　selective　catalytic　reduction　of　NOx　using　NH3　(NH3-SCR).　A　WO3@CeO2　catalyst　with　hollow　structure　was　successfully　developed　using　carbon　sphere　as　hard　template,　and　tested　for　the　NH3-SCR　of　NOx　reaction.　The　obtained　WO3@CeO2　catalyst　with　hollow　structure　exhibit　higher　NOx　conversion　(88%)　than　traditional　WO3-CeO2　catalyst　(40%)　at　200　degrees　C,　and　superior　SO2　and　H2O　tolerance　at　300　degrees　C,　given　its　high　specific　surface　area,　reducible　W　species,　increased　specific　amount　of　chemisorbed　oxygen　species　and　acid　sites.