The present work reported and discussed the results of investigation of employing nano-ZnO and general ZnO (AR grade) to prepare Ni 0.5 Zn 0.5 Fe 2 O 4 ferrites. The samples were prepared by using conventional ceramic processing route and sintered between 1150-1250 o C. The comparison of sintered samples made by employing nano-ZnO and made by employing general ZnO powder shows that the use of nano-ZnO could increase the chemical activity of starting materials, improve the densification and homogeneity of sintered bodies, enhance the electrical and magnetic properties of Ni-Zn ferrites.