The results showed that the adsorption efficiency of Lead at concentrations of 30, 40 and 50 milligrams per liter. The adsorbent amount of 0.25 grams has the best adsorption efficiency. The activated carbon has the adsorption efficiency of 96.05, 96.29 and 98.30% respectively, and the activated carbon has the adsorption efficiency of 99.88, 99.69 and 99.91 respectively.