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As a significant technological means of collecting global statistics and its changing information, remote sensing technology plays a critically important role in the investigation of territorial resources. Therefore, using remote sensing technology to interpret the tourism resources of Danxia landform can make up for many shortages of traditional methods so as to do less for more. In this article, the tourism resources of Danxia landform in Jiangxi province are extracted by remote sensing technology and its average area error is reduced to 11% through the statistics data. It can be concluded that it is feasible to investigate the tourism resources of Danxia landform by means of computer automatic identification and classification.