The YEM (Yunnan Ethnic Medicine) database offers a comprehensive collection of medicinal plants and compounds, with a focus on traditional herbal remedies used in China. It includes several key categories: the Chinese Herbal Medicine database, which features 10,455 species of herbs used across China; the Yunnan Ethnic Medicine database, which covers 1,378 species from the diverse ethnic groups of Yunnan Province; and the Yi and Dai Medicinal Herbs database, detailing 793 species specific to the Yi and Dai ethnic groups. Additionally, the Xu Min Laboratory database includes 853 species studied for their medicinal properties, while the Anti-HBV Compound Database contains 541 compounds known for their antiviral effects against hepatitis B. This extensive resource serves as a valuable tool for researchers and practitioners in the field of traditional medicine.