Abstract: Based on investigation and statistical analyses, the pteridophyta geographical elements of Pan'an, Zhejiang Province was studied in the present paper. There are 112 species (include varieties) of pteridophytes belonging to 60 genera, 35 families in Pan'an. At species levels, the East Asia and endemic Chinese element takes the largest proportion (accounting for 83.3%), showing that the region is one part of the center of East-Asian elements(especially China-Japan elements). So the region should belong to the East Asia zone and represents to the feathure of subtropics transition to warm temperated zone. At last, two-dimensional scatter plot of principal coordinates analysis (PCO) and the minimal spanning tree (MST) on the basis of the floristic spectrum (FS) of Pan'an and other twenty-one pteridophytic floras are drawn. The result shows that the methods can objectively reflect the similarities of different floras.