With Multinational Autonomous County of Longlin in Yunnan Province as the study area and on the basis of previous studies, this paper has proposed the utilization of the remote sensing information extraction method based on vegetation coverage through interactive interpretation of CBERS-02B multi-spectral data. The purpose lies in eliminating non-rocky desertification areas in the image such as the shadow, water area, bare soil and arable land so as to obtain the current distribution of rocky desertification in the study area. The method has been proved to be effective in extracting the distribution of rocky desertification in the study area, with no need of calculating and estimating such complicated parameters as the leaf area index.