1. We have established a set of quality evaluation system for Chinese herbal pieces, aiming at providing scientific and reliable basis for the production and use of Chinese herbal pieces and ensuring public health and safety.

2. In the clinical practice of traditional Chinese medicine, Chinese herbal pieces are commonly used to treat diseases. The unstable quality of Chinese herbal pieces has been puzzling doctors and patients. It is very important to scientifically and accurately identify the quality of Chinese herbal pieces.

3. With the wide application of traditional Chinese medicine in clinic, the demand for Chinese herbal pieces is increasing. How to ensure the quality and safety of Chinese herbal pieces has become an urgent problem to be solved. The purpose of this study is to explore the quality identification method of traditional Chinese medicine decoction pieces and provide support for ensuring public health.