Abstract
In the present design standard, although the ground has heterogeneity, it is not taken in detail into consideration by the basis of assumption of being homogeneous, about the heterogeneity. It has a discussion to the performance design of the earth structure, and it is thought that input parameters are important. This research considered influence, which it has on earthquake response characteristics, when it took into consideration about the spatial heterogeneity of the ground for the embankment. Consequently, by taking the spatial heterogeneity of the ground into consideration showed that the influence that it has on the maximum response acceleration was small, and residual displacement was upward tendency.