Abstract:wetland park is an important part of the national wetland protection system . under the background of vigor- ously promoting the construction of ecological civilization, combined with the existing data, we conducted a field investi- gation of plant resources application in canglangzhou wetland park in Danjiangkou city, and analyzed the plant composi- tion , vegetation types and ornamental characteristics of the park. The results showed that the park was rich in herbaceous plants, mainly marsh and aquatic vegetation, but there were few species of trees, shrubs and lianas, and there was a lack of ornamental trees . On the basis of summarizing and analyzing the problems existing in the application of plant resources in parks , some reasonable suggestions were put forward.