The multi function Danjiangkou reservoir with national stage is in churchyard of Danjiangkou city of Hubei province, Studying on mechanism of soil erosion to reservoir range has an important theoretic and practical meaning. The soil erosion location just as the follows: happening, factor leading disaster and curing means. This theory of location differs from previously theory. The soil erosion landscape of Danjiangkou city can be divided into two parts with the boundary of Wudang mountain Langhe town. The patch of landscape in the southern is scatter, the corridor of landscape in the northern is directional. The cause of two the landscape grillwork formation is correlation with the following factors, current tectonic activity of road fault zone, difference of material crust and activity of mankind.