. Saponins are widely distributed in terrestrial plants, with a small amount in marine organisms such as sponges, starfish and corals [1]. Saponins can be divided into triterpenoids and steroidal saponins according to their aglycone carbon skeleton structure. Triterpenoid saponins are widely distributed in Leguminosae (liquorice, astragalus, etc.), Araliaceae (ginseng, Panax notoginseng, etc.), platycodonaceae (Platycodon, etc.), Polygalaceae (Polygala, etc.), Umbelliferae (bupleurum, etc.) and Caryophyllaceae; Steroidal saponins are mostly distributed in Liliaceae (Anemarrhena asphodeloides, Paris polyphylla, etc.), dioscoreaceae (Dioscorea, etc.) and Scrophulariaceae. Saponins widely exist in traditional Chinese medicine and have biological activities such as antitumor, antiviral, anti-inflammatory, antibacterial, antipyretic and sedative [2].