| The development and application of ground water resources in the southern of Tumuerting zinc mine in Mongolian, have not obtained the good solution for many years, so that the development and construction has restricted in the article the geology and hydrogeological conditions in the research scope has been analyzed in detail. On the basis of this the relationships among the recharge, runoff and discharge of the ground water in the area are studied and the condition of groundwater abundance has been analyzed. Therefore there is a recharge resources in the area .And then the conceptual model and mathematical model of the groundwater system has been established. The numerical simulation method based on the finite difference is used to evaluate the safe yields in different conditions, which have been compared with the results of analyses method.The study indicates that: (1) the research area of groundwater resources is about 4000km~2; (2) the mining lay of groundwater is chalk series, the groundwater mainly lies in the pore of clastic rocks and fissures of the bedrock. On the basis of The Buried condition of the aquifer, it is grouped into phreatic aquifer and confined, and confined water is primarily, they are composed of a unified water body; (3) the results by numerical method and the analysis show: the average recharge rate of the regional groundwater is 17134.90m~3/d, and the safe yield is 3000m~3/d; (4) in the conditions of 3000 m~3/d in this well-field and 400 m~3/d and 3500 m~3/d in Xiwuerte wellfield, ten years' prediction by the numerical model presents the groundwater level is steady; (5) the development of groundwater in the new wellfield will not effect Xiwuerte wellfield, and also not produce the hazardous environment geology problems.
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