Nano zero valent iron was impregnated onto bentonite by an aqueous reduction method in this research. The purpose was to compare the effect of impregnation on nano zero valent iron's ability to remove lead. SEM images show that impregnated nano zero valent iron manifests a higher level of dispersion. With the same dosage, bentonite impregnated with nano zero valent iron exhibits much higher removal of lead than bentonite and zero valent iron alone. Bentonite+nano zero valent iron was able to removal 90% of lead at initial concentration of 200 mg/L and dosage of 0.4g/L.The results of kinetics study reveal that the reaction between lead and nano zero valent iron is quite fast. Most of the lead removal occurr within one hour. The result of adsorption kinetics experiment is fitted to both first-order and second-order kinetics. The linear correlation coefficient of second-order kinetics is higher than that of first-order kinetics. Based on correlation coefficients, reactions between nano zero valent iron and bentonite+nano zero valent iron with lead are more in accordance with second-order.after data were. In addition, zero valent iron's removal of lead is more impacted by initial lead concentration but the concentration has little effect on bentonite+nano zero valent iron.