Abstract: Based on the analysis of the influence of air leakage from the overlying goaf at 22307 working face of Bulianta Coal Mine and the production situation of the working face, it is determined that the 22307 working face affected by mining may have a communication crack with the overlying 12# coal goaf. As a result, the air leakage passage is complicated, which increases the risk of spontaneous ignition in the goaf overlying the 22307 working face. For this reason, preventive grouting engineering, surface crack sealing, strengthening fire prevention and sealing management and other measures have been taken to comprehensively deal with the fire area to ensure the safety of the working face.