The chloride ion binding capability of typical mineral functional materials were tested. The results indicate that because of physical adsorption of chloride ion, mineral functional materials have much stronger initial chloride ion binding capability, and the value is dependent on variety of the materials. It is found that initial chloride ion binding capability of mineral functional materials not only depends on their specific surface, but also relates to chemical composition, surface structure, surface electrical characteristic and micro-pore characteristic etc. The factors which affect stronger initial chloride ion binding capability in high performance concrete are discovered to be mineral functional material's initial chloride ion binding and after-hydrate's chemical binding to chloride ion in middle and late stages.