Abstract: Based on the rainfall observation with different elevation(1158m、1270m、1341m、1407m),and different slop directions(peak、positive slop、shade slop、positive chimb slop、shade chimb slop) about 20 observation station. The research results showed that without the influence of slop direction the rainfall increase first and reduce then, in the same elevation the rainfall distributing rule with different slop directions is shade chimb slop>shade slop>peak>positive chimb slop>positive slop,and the conditions of different elevation is the same.