Abstract: Chemical analysis is qualitative,quantitative and structural analysis on the complex mixture,which is characterized by combining a variety of methods of separation and analysis,namely "comprehensive analysis".This comprehensive analysis is the most exploratory and challenging scientific discipline.At present,with the popularization of various kinds of large-scale advanced instruments,chemical analysis technology develops rapidly and is widely applied to various industries.Based on conventional chemical analysis and atomic emission spectrum,scanning electron microscope,energy spectrum and X-ray diffraction instrument,a set of relatively complete chemical analysis method is summarized,so as to provide reference for the industry technical personnel in product development and quality control.