Abstract: Rocky desertification is a kind of land desertification, which is based on fragile ecological environment and drived by strong human activities,and takes the deteriorated land output as essence, showing the appearance of similar desert landscape. Rocky desertification resulted in severe adverse consequences, such as land resource depletion,drought,eco-system deterioration and a series natural disasters. In this paper,investigation was made on rocky desertification of 5 counties in southwestern Sichuan province,and studies were made of the type, degree and ececllent resistance species of the rocky desertification. Research results could be useful to providing reference for vegetation restoration patterns and species selection in rocky desertification regions.