The family of Polygonum widely grows in our country; it has a lot ofspecies that most of them have been used as the Chinese Traditional Herbal Medicineby local people in countryside. Six of them have been embodied by the ChinesePharmacopoeia in 2005. The chemical composition of Polygonum family is complex;most of them have different biologic activities, such as anti-microbial,anti-inflammation, anti-tumour, anti-cancer, acesodyne, and so on. In the paper, thechemical constituents of Polygonum tai...