Abstract: Based on the field investigation of the urban green-lands of Xining city,there are 429 species of ornamental plants which belong to 74 families 199 genuses. 152 species of native plants（57 species of common native plants）,277 species of introduced plants（155 species of common introduced plants）,and their utilization status were analyzed respectively. Further discussions were made from the perspective of native plants. Some proposals were put forward in order to provide reference for the selection and application of ornamental plants in urban green-lands of Xining city such as focusing on the diversity of ornamental plants,strengthening the development and utilization of the native plants,increasing the proportion of native plants,enriching the plant community landscape.

Key words: Xining city, ornamental plants, diversity, application