Zhongyao Yihao (中药一号网) is a Chinese-language online reference focused on traditional Chinese medicinal herbs and materia medica. The site presents itself as an image-based encyclopedia, helping readers explore Chinese medicinal materials, recognize common herbs, and learn about their uses and preparation. Its content is organized around an herb encyclopedia, guidance on effects and usage, and information about identification and processing.

Articles address practical topics such as judging herbs by appearance and smell, organizing commonly used medicinal materials at home, and understanding how to identify herbs from photographs. Readers can also find introductory explanations of herbal combinations, the relationship between a herb’s place of origin and its quality, and why harvesting time matters. Additional subjects include herbs associated with relieving coughs and phlegm or promoting blood circulation and resolving stasis. With its browsable article sections and image-oriented reference material, Zhongyao Yihao serves as an educational resource for people seeking basic knowledge about Chinese medicinal herbs.