Abstract: The development of instrumental analysis supp- lies an advanced way for the examination of trace material evidence and greatly improves the level of criminal investigation.Thermal analysis is an important area of instrumental analysis,it is the technique which measures the relation between the physical properties of matter and temperature under the program controlled temperature.Thermal ana- lysis technology,such as TG,DTA,DSC and EGA has been applied in the examination of trace material evidence.Thermal analysis may be used for identification of textile,soil,adhesive,oil,plastic and gum etc.