Abstract: Nanotechnology has become fundamental in modern society of innovation and science. Today structures have a tendency of getting miniaturized in all fields in an attempt to shrink circuits hence lowering the cost of fabrication while at the same time improving working efficiencies. Thin films nanostructure is of immense significance in this area due to factors such as electrical, optical property and probable applications. In this view it was panned to deposit thin films of pure and nickel doped zinc oxide using simple and economic spray pyrolysis technique. The structural studies were done by using X-pert Pro Diffractometer. The study reveals that the deposited films are polycrystalline in nature with mixed hexagonal wurtzite and cubic structure.