Abstract: This paper introduces the phenomenon of spraying fire among the supports in fully mechanized coal face, analyzes this phenomenon combining with the situation in face and spraying fire signs, and preliminary considers that the residual coal in working face goaf generates high-temperature by oxidizing, explosion will be occurred when it encounters high concentration gas. The flame spreads over rock fissures in goaf to the work face, and leads to phenomenon of spraying fire among the supports. Through the adoption of the comprehensive management measures, such as transportation roadway and working face high drilling water injection, safe retracement in the working face is achieved.