Abstract: Golden apple snail is one of the 100 pernicious alien invasive species in the world.  In this study, the shell powder of golden apple snail was used as the adsorbent to approach its characteristics and mechanisms of lead (Pb²⁺) removal from aqueous solution under laboratory condition. It was found that the removal rate of Pb²⁺ by the shell powder was related to the shell powder amount, initial Pb²⁺ concentration, solution pH, and reaction time, while solution temperature had lesser effects. The fitting of Langumir model indicated that the Pb²⁺ adsorption capacity of the shell powder was 89.29 mg·g^-1. The analysis of scanning electron microscopy showed that the Pb²⁺ removal process was mainly happened at the surface of the powder, and small particle was more active. The X-ray diffraction indicated that the adsorbed Pb²⁺ was in the form of PbCO₃ existing on the powder. The mechanisms of the Pb²⁺ removal could be the ion exchange and precipitation on the aragonite and calcite in the powder. It was suggested that the shell of golden apple snail could be used as an effective bio- adsorbent for Pb²⁺ removal.