Using ETMof Landsat-7 and SARimage of Radarsat1 satellite and based on various means such as the principal component analysis, the fusing processing of ETMand SARimages and the ratio of the mixed wavebands, the authors extracted the water content information from shallow soils in areas around the Tarim basin. In the image, the high water content area, the intermediate water content area, the low water content area and the water-bearing sector under the Quaternary aeolian bed show different color tone characteristics. Field verification has led to the delineation of new water-bearing sectors and demonstrated obvious effect of information extraction.