Abstract: A 3-D stereogram is given showing the primary topography in AUTOCAD, utilizing the vectorized primary relief map of the slope of a mining junkyard in a certain iron ore stope. Of which the 2-D model for calculation is a profile map of the 3-D model. Considering gravitationally the groundwater distribution, the finite element analysis of ANSYS software is used to simplify the 32° slope and bulkhead dam into a planar stress problem to analyze stress and displacement field. It is reasonable that the displacement of the junkyard slopes is great because the height of the yard is so big as well as its deformation. To control both the upland water and groundwater is a very effective measure to take for improving the stability of the junkyard. However, what is more important to the bulkhead dam is the magnitude and orientation of the stress and deformation in the dam heel region. A referable safety factor is thus given in accordance to the ratio of the tensile strength of dam material to the actual tensile stress. It has been proved in calculation that the 32° slope is stable if building a bulkhead dam on the slope foot, and the dam will provide the stability to the slope and bigger capacity to the yard.