Abstract: Utilization of traditional Chinese medicine (TCM) resources for pharmaceutical development is an important part of modernization of TCM. The classical TCM prescriptions provide an important insight for developing new drugs. Based on the advantages of local TCM resources, focusing on the key scientific problems in the quality evaluation of medicinal materials and the study of classical prescriptions, this research group takes the quality evaluation of medicinal materials as the starting point. Metabolomics serves as a technical means of "quality evaluation of TCM, to support scientific connotation of classical prescriptions and development of new drugs from TCM. Using Radix Bupleurum as an example, this paper systematically and thoroughly expounds the above research ideas and strategies from the aspects:quality evaluation of medicinal materials, basic research of Xiaoyansan, and research and development of new anti-depressants. This provides the scientific basis for the modernization of TCM.