Abstract：According to the present research situation, the comprehensive classification method of goaf spontaneous combustion "three-zone" has been confirmed, based on the upper and lower limits of oxygen concentration, "three-zone" observation, numerical simulation, and MIN-MAX comprehensive treatment method.The range of spontaneous combustion "three-zone" in goaf has been divided.The fully-mechanized caving mining working face of Sandaoling 4204 in Hami city of Xinjiang has been regarded as an example for practical application, and the range of spontaneous combustion "three-zone" in goaf has been determined.The practice shows that "three-zone" determined by this dividing method can better reflect the actual situation of coal spontaneous combustion, and it has a reference function to the gob fire of similar conditions.

Keyword：spontaneous combustion of "three-zone";limited oxygen concentration;leakage air viscosity;MIN-MAX method;