This article introduced the herbal medicine studies on Bupleurum in recent years, focused on the classification just like morphological and chemical classification, microscopic characteristics and molecular biology classification for Bupleurum. Identification combined with a variety of classification is the most effective method for Bupleurum. Due to the short supply of Bupleurum in the current market the current Bupleurum classification studies should focuses on combining pharmacological research to expand the Bupleurum's herbal sources.