本文根据陕西神府煤田煤层自然面积大、强度高、延展深的特点,研究了自燃的基本特征和分布规律.提出了煤层自燃的三级烈度,探索了煤层自燃使煤层变薄与形态以及自燃区大小与煤层结构及厚度的关系、对煤质和自燃煤层范围大小的影响等。通过野外观察和勘探实践,提出了有效的勘探方法与辅助手段。对确定煤层纵横边界线、探明自燃区煤田储量有重要意义。 Based on the characteristics of natural area, high intensity and extended depth of coal seam in Shenfu coalfield in Shaanxi Province, this paper studied the basic characteristics and distribution of spontaneous combustion, proposed three levels of spontaneous combustion of coal seam, explored the causes of spontaneous combustion of coal seam such as thinning, The relationship between area size and coal seam structure and thickness, and the influence on the range of coal and spontaneous combustion coal seam size. Through field observation and exploration practice, put forward an effective exploration methods and aids. To determine the vertical and horizontal thickness of coal seams, coal spontaneous combustion zone proven reserves of great significance.