8204 working face of Tashan Mine gradually showing the mining pressure, which led to the deformation of the roadway and the caving phenomenon, and the wide security coal column of the face, resulting in a serious waste of resources. In view of this, the analysis and research was conducted on the technology of leaving small coal pillars in the extra thick coal seam, and the narrow coal pillars were arranged along the goaf while ensuring fire protection and gas control in the face. The results showed that the use of this technique can significantly reduce the maintenance of roadway mining and improve the coal recovery rate.