Abstract: The characteristics of variation of fluorine contents in groundwater and different types of fluorinepolluted groundwater were etudied. Simuletion ex-perimants on soil infiltration tests using industrial sewage and solutions containing different calcium and fluorine concentration of different pH values, preliminary study. The transport and transformation of fluorine in soil and groundwater was mode. Characteristics of the distribution of main belts of endemic fluorine in China are illustrated and some measures for endemic fluorine and fluorine pollution in groundwater are luggested.