In this study, the significance and content of prospecting information of sedimentary-metamorphic type iron deposit are expounded. Ziyuan-3 high spatial resolution satellite data are used to extract the prospecting information of sedimentary-metamorphic type iron deposit in taxkorgan area in Xinjiang. By using the pertinent methods of image processing, the information of ore-bearing bed, ore-control structures have been extracted, and based on the ferric altered mineral spectrum characteristics, the ratio method also has been used to extract iron mineral anomalies in study area. Based on the ore-control structure, ore-bearing rocks and ferric anomalies information, 2 remote sensing prospecting targets have been circled. Our research have laid foundation for the evaluation of mineral resources in this region, and also broadened the thinking for domestic high resolution image scale application in geology and mineral resources.