Introduction ――Fu Kezhi and Gunter Schwarz Chapter Ⅰ Gan Cao as part of decoctions in traditional Chinese medicine and its introductinon into modern pharmacy ――Gunter Schwarz,Fu Yujie and Zu Yuangang Appendix-chemical Structures Chapter Ⅱ Glycyrrhizin and flavonoid extracts from licorice ――Fu Yujie,Zu Yuangang and Gunter Schwarz Chapter Ⅲ Licorice Resources in the People''s Republic of China ――Gu Huiyan and Zu Yuangang Chapter Ⅳ Standardization for Cultivating Chinese Licorice Comments and Perspectives ――Gunter Schwarz and Fu Kezhi Index