Abstract: Xiliaohe (Inner Mongolia),which lies Wengniute-Kulun county of Inner Mongolia south-east,is in deficient water resources.Groundwater always is main water headspring of industry and living in this area,and the exploitation of this groundwater has significance.Through the study on distribution characters and exploiting conditions of groundwater and the balance of supply and demand of groundwater,the article puts forward problems and relating polices and advices that lies in the exploitation of groundwater resources.Only on the condition that we ascertain reserve of groundwater,mark out and regulate unitedly,prevent water pollution,call for saving water,suggest uni-calling between surface water and groundwater positively,can we exploit and use groundwater rationally.