中药含有的化学成分是中药药效的物质基础，传统中药是以复方或饮片入药，药效成分并不是单一化合物，而是以药效组分的形式存在。只有在中药药效组分理论指导下深入研究中药的药效组分，才能真正明确中药治疗疾病的机理，保障用药的安全性、有效性和稳定性，推动中药事业的发展，加速中药走向世界的步伐。

The traditional Chinese medicine (TCM), as China's precious cultural heritage, owns a unique theoretical system and rich clinical experience. The chemical composition of Chinese herbal medicine serves as the material basis for the efficacy of Chinese medicine, and the pharmaceutical composition should not be considered as a single compound, but a combination of active components. Only under the guidance of in-depth study concerning the efficacy of Chinese medicine components, will it possible to reveal the mechanism of Chinese medicine to cure diseases and protect drug safety, efficacy and stability, thus facilitating the TCM development to a higher level.