Superfine NiO powders were prepared by a homogeneous precipitation method with an aqueous solution of nickel nitrate hexahydrate and urea.The microstructure,surface morphology of NiO were characterized thermogravimertric (TG) analysis and differential thermal analysis (DTA), X-ray diffraction (XRD), scanning electron microscope (SEM), infrared (IR) spectroscopy.Superfine NiO with particle size of 1-3 μm can be obtained by this method.NiO deliver a discharge capacity of more than 670.5mAh/g, and the capacity loss per cycle after 80 times is only 0.031%, suggesting that superfine NiO derived from this method is an excellent anode material for lithium ion batteries..