Raman spectrum analysis technology is recognized as one of the most effective rapid substance identification technologies. Different substances have different molecular structures, and thus the Raman spectra are different. Therefore, we can know about the molecular properties of the substances by observing the Raman spectra of substances, and then identify the substances. Based on the Raman spectra advantages in accuracy, rapidness and nondestructive properties, NUCTECH has developed RT series Raman spectrometers, which are used for the security inspection, investigation of drug smuggling, anti-smuggling, food and pharmaceuticals safety, jewelry and jade identification, and other fields, in order to quickly and effectively identify all kinds of substances. After years of research and development, NUCTECH now has developed three series of Raman spectra products, i.e. RT1003 series, RT3000 series and RT5000 series, including more than 10 products.