The Mn-CeOx/AC@CNTs catalyst was prepared by impregnation method using carbon@carbon nanotubes (AC@CNTs) support. And the catalytic performance of the addition of Fe species to Mn-CeOx/AC@CNTs for the simultaneous nitrogen monoxide (NO) reduction and chlorobenzene (CB) oxidation were investigated. The physical and chemical properties of the catalyst were characterized by SEM, XRD, Raman, FTIR, XPS, H2-TPR, and other methods. The results show that the introduction of Mn species into CeO2 with a large ionic radius, which forms a Mn-Ce solid solution and promotes the generation of oxygen vacancies, and abundant C—H groups and oxygen-containing groups existed on the catalysts surface are beneficial to improve the low-temperature catalytic activity. Additionally, compared with the Mn-CeOx(1:7)/AC@CNTs (n(Mn):n(Ce) =1:7) catalyst, the relative proportion of oxygen adsorbed surface and the amount of medium acid increased significantly on the Fe-Mn-CeOx(1:7)/AC@CNTs catalyst, making it have the good redox properties and surface acidity. The Fe-Mn-CeOx(1:7)/AC@CNTs catalyst shows the highest catalytic activity throughout the temperature window, with the NO conversion reaches >90% at 225～300 ℃, and the CB conversion >90% at 300 ℃. In addition, the NO conversion of Fe-Mn-CeOx(1:7)/AC@CNTs catalyst reaches 95% at 300℃ when CB is present.