Abstract: Air-dried leaves of Epimedium in the nursery were collected at the full-bloom stage,and then investigated the contents of four different pharmacological flavonoids by high-performance liquid chromatography.Leaf area,leaf length,and leaf width were measured before processing materials.The results show that there is significant correlation between the leaf morphology of Epimedium species and the contents of flavonoids:leaves with high flavonoid content,are usually oval or long oval shape and less leathery.