Abstract: By analyzing the theoretical basis of spontaneous combustion “three zones”, we think that the spontaneous combustion “three zones” division should consider the essential difference between “three zones”. We present spontaneous combustion “three -zones” method, which includes the minimum coal thickness, the maximum air leakage wind speed, the critical oxygen concentration as the main indexes, aided by the temperature rise speed indicator, while giving the index value and calculation method, by combining the three traditional “three zones” division methods and indexes, whose name is the wind-blown wind speed method, oxygen concentration method and temperature rise speed method. This method is used to measure and divide the actual spontaneous combustion “three zones” in the goaf area of B1003W01 working face in Shajihai Coal Mine. The results are consistent with the actual results.