Abstract: Based on the ground hydrological exploration materials about Xieqiao mine field,limestone water treatment project of return airway in the Dongfeng well-440 m,karst collapse,hydrogeology conditions exploration engineering in the mining area of east wing and past hydrogeology survey work,the hydraulic connection between aquifer and aquifuge in mining well was summarized and water filling factor was analyzed.And mine water treatment was assessed to establish the reasonable and effective scheme for preventing mining water,which ensure the safety production and provide hydrogeology guarantee.