ZSM-5 was directly grown on a preshaped Ni net support and subsequently exchanged with Cu2+ ions, then the supported Cu-ZSM-5 was employed as a NO reduction catalyst. The supported catalyst was found to show an activity comparable to that of an unsupported Cu-ZSM-5 zeolite. Furthermore, the hydrothermal stability of the CuZSM-5 was greatly improved when grown on the Ni net support.