Abstract: The Dapeng peninsula is situated at the southeast of Shenzhen City,China.It locates at 114°28'~114°37'E and 22°26'~22°34'N,covering an area of about 106.7 km 2.There are 105 species of ferns which belong to 35 families,65 genera in this area.The species-rich families which include over 5 species are Dryopteridaceae,Thelypteridaceae,Pteridaceae,Selaginellaceae,Dryopteridaceae,Athyriaceae,Aspleniaceae and Lindsaeaceae.The flora analysis indicated that the tropical and subtropical elements in families (54.26%),genera (92.86%) and species (70.87%) are dominant.This reflected the tropical characteristics of the species at the region.The single-genera families and single-species genera are abundant,which make up 54.26% of the total families and 69.23% of the total genera.According to the differences of their habitat,the ferns of Dapeng Peninsula can be divided into 4 ecological types:terraphytes (71.43%),lithophytes (4.59%),hydrophytes (2.75%) and epiphytes (4.59%).

Key words: Shenzhen City, Dapeng Peninsula, ferns, flora, ecological characteristics