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Based on the field survey and the known data，the flora and distribution of the pteridophytes in Ba Mountains were analyzed．The result were showed that there were about 289 spedes(including varieties and forms)，79 genera and 34 families of pteridophytes in this region．FIoristic and geograpllic dements are complicated．At genus level，tropical—subtropical distribution types were dominant，accounting for 60．87％ of the total genera，and temperate distribution types covered 39．13％of the total．While at the species level，temperate elements were dominant，accounting for 91．23％of the total species，and tropical—subtropical elementa covered 8．77％of the total．Of the ternperate elements，East Asian element took the largest proportion，including endemic tO China，accounting for 86．67％ of the total species in the mountains，which indicated that Ba Mountains belonged tO China-Japan Sub-zone of pteridophytes．The pteridophytes of Eta Mountains can be divided into 3 altitudinal zones，and their vertical distribution cen— ter occured between 1,000 -1,800 m above sea level．