Lepisorus is a large genus of Polypodiaceae, which is widely distributed in all parts of the country. The Lepisorus plants are rich in flavonoids, phenols, steroids, ecdysterone and other active ingredients. Domestic researches on Lepisorus are mainly in taxonomy, systematics, morphology, anatomy and geographical distribution, but there is few reports about its chemical composition. In this paper, we studied the extraction process of chlorogenic acid, and determined chlorogenic acid, ecdysterone, total flav...