Abstract: Coal mine water disaster has attracted great attention on account of its serious impact. As a result, under the complex hydrogeological conditions, the analysis on water-filled condition becomes important very much during its underground mining. Taking the lower group coal mining in Tuanbai Coal Mine of Shanxi Huozhou Coal and Electric Power Group as the background, based on water abundance analysis of adjacent aquifers at coal roof and floor, the water-filled condition of the lower group coal, including 10^#and 11^# coal, was analyzed. In detail, the water-filled source, the water-filled channel and the water-filled strength triggered by the mining and influenced by the adjacent aquifers, i.e., Taiyuan formation limestone aquifer and Ordovician limestone aquifer were ascertained. The results supplied the precondition for the corresponding countermeasures for water disaster prevention and control, and provided the material basis for the coal mine safety mining;water disaster prevetion and controlling.