Abstract: This paper deals with synthtic hydroxylapatite (HAP) to remove Pb²⁺ and Cd²⁺ in wastewater. The optimizating condition and removing efficiency can be determined. This method can together to remove Pb²⁺ and Cd²⁺ in wasterwater, removing rate up to remove Pb²⁺ and Cd²⁺ in wastewater, removing rate up to above 89%. It has a widely determining pH range, convenient operation, simple equipment and high adsorbing capacity. This method has a good feasibility and satisfactory result.