Ni-Cu catalysts with different ratios were prepared through the precipitation method.The influence of Ni-Cu interaction on the catalytic oxidation of benzyl alcohol was studied with XRD，TPR and XPS characterizations.The result showed that the obtained catalysts were Ni(OH)2，the mixture of Ni(OH)2 and Cu(OH)2，and CuO respectively when the catalyst system contains only Ni，Ni and Cu，and only Cu.The reduction temperature of the catalyst decreased owing to Ni-Cu interaction，and Ni prevented the transformation of Cu(OH)2 to CuO.In addition，the catalytic activity was higher with a higher Ni content and the existence of Ni improved the catalytic activity of Cu.