Abstract: Through the analysis of the fire causes in N1203 fully mechanizd working face of Yuwu coal industry,a comprehensive fire extinguishing program was developed.The paper elaborated on the fire area closure and inerting.The comprehensive fire extinguishing methods of injecting CO2,nitrogen,gelatin from surface drilling and gas monitoring were used in fire extinguishing instance,which provide valuable experience for controlling fire diaster in fully mechanized working face.