According to the TM image in Baicheng of Xinjiang as well as the information of geology and mineral resources, the coal self-combustion zone in the Baicheng coalfield was delineated. On such a basis, together with an analysis of the spectral character, the authors adopted various enhancement measures such as linear transform, edge enhancement, band calculation and synthesis of multi-band pseudo colors, which led to the identification of the abnormal information of the ground, vegetation and burnt rocks caused by the coal fire in the Baicheng coalfield. The result of the study has provided reliable basis for detecting the coal self-combustion zone.