Abstract:Through investigation on rock and mineral analysis, hydrogeology, water dynamic conditions and other factors of water storage reservoir in limestone areas in south part of Sishui county, strontium source in mineral water and its forming conditions have been studied. It is regarded that dissolution of strontium-bearing minerals in regional stratigraphy is a natural source of mineral water. Unique geological structures in this area supplied the channel for strontium containing water, and constructed its enrichment units. It will provide the direction instruction for the development of mineral water survey, evaluation and utilization.