Large numbers of highly ordered Ni8080Fe2020 nanow ire arrays have be en fabricated by using electrochemical deposition technique with anodic aluminiu m oxide templates. The density of Ni8080Fe2020 nan owire is as high a s 101212—101313/cm22. The Ni8080Fe2020 nanowires were grown in a preferred direction of (111) with a high aspect ratio. Compared with the bulk sample, Ni8080Fe2020 nanowire arrays have enh anced coercivity and larger remanence magnetization.