Abstract:Infrared spectroscopy technology has the advantages of rapid，nondestructive economy，accurate environmental protection and so on.Now it has become the fastest developing and most widely used modern food analysis and testing technology.The application of safety testing starts a comprehensive study.Firstly，the basic content of the application of infrared spectroscopy technology was introduced.Then，detailed research was conducted on food authenticity，species，origin，pathogenic bacteria，pollutants，drug residues，and genetically modified food.In the end，the development of infrared spectral technology was briefly described.