Abstract: In order to further enrich the urban landscape plant varieties and actively use the local wild ornamental plant resources in KunShan, 60 species of the wild ornamental plants in Kunshan Ecological Forest Park were selected as the research object. An exploitation priority evaluation model consisting of ornamental coefficient, endangered coefficient, breeding coefficient, resistance coefficient, volume coefficient and habitat suitability coefficient was constructed. The exploitation priority of the 60 species of wild ornamental plants was determined by assigning different weights for the above 6 coefficients. The evaluation results showed that 15 species including Lagopsis supina, Leonurus artemisia, etc. were classified into the first level and was the best for popularization and application. 6 species including Portulaca oleracea, Dendranthema indicum, etc. were classified into the second level, and should also be applied in park and garden construction. The other 39 species which belonged to the third and fourth level did not have great value for popularization and application. The comprehensive evaluation provides a reference for landscape exploitation and application of wild ornamental plants in Kunshan.