Abstract: Aiming at mining condition and arrangement of 1411 working face in Huafeng Coal Mine, this article discusses coal spontaneous combustion in great-inclined thick coal seam oblique -cut slice none coal pillar mechanized caving face. According to the production situation, the 1411 mining face is divided into seven coal spontaneous combustion dangerous areas. This article analyzed the residual coal distribution and the regularity of air leakage in all regions and divided the process of mining face into four stages (open-off cut stage, mining stage, crossing 1410 plane stopped mining line phase and during the time of 1411 working face mining or stop mining). This article provides implementation countermeasure for each phase of the different regions of coal spontaneous combustion prevention and control. The production practice shows that the scheme has achieved good effects in coal combustion control.