Abstract: In recent years, Chaohu eutrophication is serious, many problems are difficult to solve. Artificial wetland system technology can effectively reduce nitrogen, phosphorus, heavy metals and other nutrients from the source, fundamentally solve the serious water pollution caused by the outbreak of blue-green algae in Chaohu every year. In order to study the purification effect of wetland on the water quality of Chaohu, Taking Binhu Hefei national Forest Park as an example, study of wetland location, season, plant species distribution, population function and wetland ecological functions and so on. A total of 228 species belonging to 84 families and 179 genera. On the basis of this, the existing plant configuration of the park is analyzed and discussed.

Key words:  , Binhu Hefei national Forest Park；the investigation and analysis；wetland plants；plant distribution configuration