Abstract: In order to promote the rapid greening of the steep bare rock slopes in the Jiuzhaigou National Nature Reserve after the earthquake, and accelerate the ecological restoration process of the landscape, based on references and field investigations, 30 common native mosses in the region were selected, and an evaluation index system of 18 items was constructed based on six aspects including resistance ability, availability, ecological function, reproductive ability, biomass accumulation, and aesthetic appeal, using the Analytic Hierarchy Process（AHP）. The results indicated that: according to the comprehensive evaluation score, the mosses were divided into four grades. Finally, five species, Racomitrium japonicum, Hypnum plumaeforme, Eurohypnum leptothollum, Plagiomnium ellipticum and Brachythecium rutabulum were selected. The results should provide an objective guidance for future ecological restoration without soil in Jiuzhaigou and its surrounding cold fragile ecosystem area.