Abstract: This paper is based on the wavelet transform Reflectance Spectroscopy the basic theories and methods;Then use of this technology by means of 40 rock Karamay field spectral curve for the quantitative data, summary and analysis of the ophiolite common typical rock (basic méange, gabbro, peridotite, Serpentine) and the spectral characteristics of the cause.Finally, with the ETM+bands scope of the application areas in the West Junggar multi-band in age and Spectral Angle Mapper (SAM)model for the remote sensing in ages from the identification ophiolite distribution laid a good foundation.