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.