Abstract: The natural zeolite was used as the experimental material, in combination the requirements of adsorption materials used to treat waster water, the natural zeolite was modified by acid, alkali and salt. The method, removal efficiency, influencing factors and adsorption mechanism for removing of heavy metal ion, such as Pb²⁺ and Cu²⁺, from solution using modified zeolite were also studied. The results showed that adsorption capacity of Pb²⁺ and Cu²⁺ in zeolite modified by NaOH can be improved greatly. The adsorption capacity of Pb²⁺ and Cu²⁺ in modified zeolite rises with the increase of initial concentration. Modified zeolite adsorbs Pb²⁺ and Cu²⁺ very quickly, and the equilibrium can be reached in shorter time. The higher pH of heavy metal ion solution the better it is for the adsorption of Pb²⁺ and Cu²⁺.