Abstract: The vegetation types and species of slope-protecting plants in karst landscape of Guangxi were investigated. Then the side slope landscape ecological sustainability by the AHP and fuzzy comprehensive evaluation method was evaluated. Based on evaluation result and the status of slope protection, some suggestions on slope-protecting plants selection and arrangement were put forward. First, after soil conversation by pioneer plant, such as the grass family and fern plants, native arbor s and shrubs should be planted, for example, Cyclobalanopsis myrsinifolia, Koelreuteria bipinnata, Dimocarpus confinis, Flueggea virosa, Tirpitzia sinensis, Spiraea kwangsiensis. Secondly, some bamboo or vine type of slope protection landscape could be set up in proper place, for the purpose of slope protection as well as ornamental enhancement. The best choice of slope-protecting plants arrangement is arbor-shrub-grass, and the native plants tend to first selected.

Key words: road slope, karst landform, plant selection and arrangement, native plant