Abstract: Through the investigation and statistics of ferns distributed in Miyi County, there were 315 species of ferns belonging to 39 families and 84 genera. The dominant families were Dryopteridaceae and Polypodiaceae, with a total of 16 genera and 104 species, accounting for 33.02% of the total species. The dominant genera were Polystichum, Dryopteris, Asplenium, Pseudotumorous fern, etc. At the family and genus level, the geographical components were dominated by pantropical distribution, while at the species level, endemic to China and tropical Asian were dorminant in East Asian.