Corrosion inhibitor molybdate intercalated hydrotalcite as absorbent were used to adsorb Cl- from NaCl solution. The effects of the adsorption time, adsorption temperature and initial concentration of the adsorbate (Cl-) were investigated. The element change of HT-MoO42- powers was admeasured before and after adsorption Cl-, and adsorption isotherm and adsorption kinetic curve were determined. The experimental results showed that the adsorption reaction mainly proceeded in the form of Mesoporous monolayer combined with multilayer adsorption. The adsorption reached balance within 70h. The adsorption capacity was enhanced with the increase of initial chloride concentrations and temperature. The adsorption kinetics was followed Lagergren pseudo-second-order kinetic model with correlation coefficients of 0. 9981.