Daodi medicinal materials, more specifically known as Dao Di Yao Cai (道地药材) translated as, Authentic Area Medicinal Materials, refer to medicinal substances cultivated and harvested in specific geographic regions distinguished by unique natural conditions and ecological environments.

These areas are carefully selected for their optimal cultivation techniques, harvesting methods, and processing practices, resulting in medicinal materials of superior quality. Recognised for their exceptional clinical efficacy compared to similar botanical products from other regions, daodi materials have earned a well-established and long-standing reputation in the practices of Chinese herbal medicine.