Thermoanalytical coupling technique is a kind of method which combines thermoanalytical technique with different detection means,in order to research exactly the characteristics of structure,composition,thermal reaction,etc.of materials and reveal the nature of materials thermodecomposition,especially in the process of the variation of mass and heat and the ingredient of thermodecomposition of metallic materials.In this paper,thermoanalytical technique coupled with several kinds of analytical methods such as differential thermal analysis,differential scanning calorimetry,Fourier infrared spectroscopy and mass spectrometry were emphatically introduced.Taking the research of metallic materials for example,the applications of thermoanalytical coupling technique in the structure and properties of metal materials were described in detail,and the application prospect of thermoanalytical coupling technique was outlooked.