Abstract: There are 107 species(including varieties, forms) which belong to 54 genera and 26 families in Qimen Region, Anhui Province.Among them a species, Drymotaenium miyoshianum is first recorded.The predominant families in Qimen region are Dryopteridaceae, Polypodiaceae, Athyriaceae;predominant genera are Dryopteris, Selaginella, Arachniodes.Based on the analysis of geographic elements of genera, the result shows that the pan-tropical elements are dominant, but of species, East-Asia elements including China-Japan and Chinese endemic elements are dominant.Qimen region is a key area of East-China flora.The pteridophyte of Qimen can be grouped into 4 distribution types, and of them the terrestrial ecological group is dominant in 107 species.According to similarities of species and cluster analysis of genera, this flora is much closely allied to Sanqing Shan and Tiantong Shan than the other areas, such as Baishilazi Nature Reserve, etc.

Key words: fern flora, Qimen region, Anhui Province