Overview -- Gas Chromatography Mass Spectrometry Coupling Techniques -- LC-MS in Plant Metabolomics -- Nuclear Magnetic Resonance Techniques -- Multivariate Analysis of Metabolomics Data -- Metabolomic data processing based on mass spectrometry platforms -- Metabolite Qualitative Methods and the Introduction of Metabolomics Database -- Plant Metabolic Network -- Applications of LC-MS in plant metabolomics -- Application of Metabolomics in the Identification of Chinese Herbal Medicine -- Metabolomics based Studies on Artemisinin Biosynthesis -- NMR-Based Metabolomic Methods and Applications -- Metabolomics research of quantitative disease resistance against barley leaf rust.