Recently, the International Standard for Traditional Chinese Medicine Rehmannia glutinosa root (ISO 9109:. Dihuang is the main medicinal herb in various Dihuang pills, including Liuwei Dihuang pills. Zhongjingwanxi Pharmaceutical Co., Ltd., adhering to the pharmaceutical concept of "good medicine, good medicine", has established six major medicinal bases in three provinces and six places, including Nanyang, Henan Province, according to the requirements of GAP, including Rehmannia glutinosa, Chinese yam, and peony bark. The construction of the base has been widely recognized by government departments, industry associations, and other sectors of society. Among them, the Huai Shan Yao and Huai Di Huang bases have been awarded the "Henan Province Standardized Planting Demonstration Base" and the Cornus Base has been awarded the "Top 10 Standardized Planting Bases for High Quality Authentic Chinese Medicinal Materials in China". Zhongjingwan Western Pharmaceutical Rehmannia Base Rehmannia was first recorded in the Shennong Materia Medica Classic and was included in the Chinese Pharmacopoeia. It is the root tuber of the plant Rehmannia in the family Scrophulariaceae, and has the effects of clearing heat, cooling blood, nourishing yin, and promoting body fluids. As a traditional bulk medicinal herb, its frequency of use in traditional Chinese medicine prescriptions ranks in the top ten, and its international trade volume ranks in the top ten of traditional Chinese medicinal herbs and decoction pieces. Ranked 33rd in the ISO single herb ranking. Its application value has also received widespread attention in the Asian, European, and North American markets, and plays an important role in medical, healthcare, economic industries, and other fields. In order to adapt to the rapid development of the Rehmannia glutinosa industry and enhance the international influence and competitiveness of Rehmannia glutinosa, Professor Zhang Tong, a member of the National Pharmacopoeia Committee and a member of the School of Traditional Chinese Medicine at Shanghai University of Chinese Medicine, Associate Professor Shen Yunhui, Researcher Ding Yue A research team composed of Yang Yishun, a senior experimenter, and Song Xinyang, a researcher from the Institute of Science and Technology Humanities, together with Zhongjingwan West Pharmaceutical Co., Ltd. and Henan University of Chinese Medicine, formed a joint research team on the ISO international standards of traditional Chinese medicine such as Rehmannia glutinosa. Associate Professor Shen Yunhui, as the standard proposer, submitted a proposal for the "Traditional Chinese Medicine - Dihuang" standard to the International Organization for Standardization/Technical Committee of Traditional Chinese Medicine (ISO/TC 249) in February 2021. After defense and discussion at the 19th meeting of ISO/TC 249 WG1 held in April 2021, the proposal was officially approved through voting in November 2021, with a total of representatives from China, Canada, Germany, Hungary, Italy, and Japan Nominated experts and project teams from eight countries, South Korea and the Netherlands, jointly develop standards. The collaborative team focused on the specific situation of the development of Dihuang standards in relevant countries. After several rounds of defense and discussion, the standards were studied and revised, and finally officially published in January 2024. Dihuang is a commonly used bulk medicinal herb in clinical practice. From 2014 to 2018, China exported approximately 42359 tons of Dihuang medicinal herbs, with a total export value of approximately 155.5 million US dollars. The Chinese Pharmacopoeia (2020) includes a total of 1607 prescriptions, including 177 prescriptions for Rehmannia glutinosa. Rehmannia glutinosa collected from《