Abstract: In view of the problem of the long division cycle of the spontaneous combustion "three zones" in the stoping face goaf and the inability of conventional measurement methods to smoothly and accurately extract gas samples from the goaf,a drilling based method for dividing the spontaneous combustion "three zones" in the working face goaf is proposed.The method uses the floor rock roadway below the working face,the upper high drainage roadway,or adjacent roadways to set locations of measurement points towards the goaf or groove to arrange boreholes.After sealing the holes,a gas sampling device is used to take gas samples from each arranged measurement point for analysis.The dynamic analysis and judgment of the distribution of the "three zones" in the working face are automatically conducted,achieving dynamic visualization of the distribution of the "three zones",and this scheme is applied to the 211301 working face of Xiaojiawa Coal Mine.The practice proves that this scheme can efficiently conduct reasonable division of the spontaneous combustion "three zones" in the working face goaf,provide reasonable suggestions for the pushing and mining progress of the working face,and provide valuable experience for the prevention and control of coal spontaneous combustion in the goaf.