The top and bottom edges of 1 000 impact craters are extracted by manual  vectorization in the remote sensing images evenly in this paper. All the parameters, r₁, r₂ and h, are researched by fractal analysis, statistical analysis and cluster analysis. The results show that: 1) the fractal dimension of the impact craters’ number with r₁ and r₂ is D₁=1.88 and D₂=1.51, respectively. They are both larger than the fractal dimension of the impact craters on the earth; 2) there is a good liner correlation between r₁ and r₂, and the clustering results will be divided into three categories; and 3) the coefficient of determination R²=0.968 is obtained by the liner fit of three parameters r₁-r₂-h, which shows that there is also a good liner correlation among r₁-r₂-h.