In stone detection, the accurate identification of stone types is of great significance to the correct selection of stone. At present, the selection standard of stone is mainly based on the kinds of stone and use experience. When the kinds of stone are difficult to identify, the X-ray Diffraction (XRD) or chemical analysis method is usually used. These methods are subjective or detrimental. A Fourier Transform Infrared (FTIR) spectrometer is used to measure the infrared spectra of stone. Then, the characteristic absorption peaks in the measured infrared spectra are used to identify the types of stone. This method is convenient, fast, accurate and nondestructive. It is helpful to the setting of stone detection standards in the future.