The development of Chinese herbal medicine began to gradually mature in the Sui, Tang and Five Dynasties, mainly in the following aspects: 1. Perfection of the theoretical system: During the Sui, Tang and Five Dynasties, the theoretical system of Materia Medica in China was gradually perfected and formed a classic work represented by the Compendium of Materia Medica, which carried out in-depth research and analysis on the chemical composition, mechanism of action, clinical application and other aspects of drugs. 2. The richness of the variety of drugs: In the Sui, Tang and Five Dynasties, China's herbal science began to collect and organize a large number of drug varieties, forming a rich drug variety library, which provided an important foundation for later clinical practice and research. 3. The expansion of drug diagnosis and treatment: In the Sui, Tang and Five Dynasties, China's herbal medicine began to set foot in the field of drug diagnosis and treatment, and conducted in-depth research on the treatment effects and side effects of drugs, providing an important reference for clinical practice. 4. The spread and development of herbal medicine: In the Sui, Tang and Five Dynasties, the spread and development of herbal medicine in China attracted the attention of many writers and literati. They conducted in-depth research and creation on herbal medicine, which promoted the spread and development of herbal medicine.