Abstract:On the basis of hydrogeological condition in work area, based on Modflow, mathematical concept model of hydrogeology has been set up. By using the model, development of groundwater puming cones in work area has been predicted. It is obtained that the overall shape of groundwater flow field is basically no big change after 5 years, water level of centralized exploitation groundwater source will generally decrease, the scope of pumping cones will expand, equivalent lines will reduce 4~10m, and groundwater will be over exploited. Pointing to these condition, relevant countermeasures have been put forward in this paper.