Abstract: By summarizing mining status and the dump situation of MiaoGou iron mine, the geological environment problems resulting from the geotechnical stockpiling are put forward.From four aspects of landform, stratigraphic lithology composition and rock area physical and mechanical properties, the engineering geological characteristics are analyzes, and the zone hydrogeological situation are described as well.Based on the field geological investigation by drilling and in situ tests and analysis on the characteristics of the surrounding rock joints, the dump stability calculation profile are determined and the parameters are selected. Through the calculation on stability of the estern dump, the paper proposed specific measures to treat dumps from social, environmental and economic aspects and forecast comprehensive benefit of dump governance.

Key words: Dump, Stability, Control