In order to effectively improve the extraction volume and efficiency of the gas in the 8006 working face of Wuyang Mine, according to the specific conditions of gas and geological occurrence of the working face, the stratified hydraulic fracturing technology of the roof and the specific analysis were carried out. The principle and process flow of the layered hydraulic fracturing technology was analyzed, combined with the specific conditions of the working face, the parameters of the fracturing and anti-reflection scheme were designed, and the gas extraction volume and efficiency of the bored section of the fracturing section were monitored. The results showed that the gas drainage concentration in the hydraulic fracturing zone was 65% ~ 87%, and the average single-hole gas extraction volution was 0.10 ~ 0.14 m3/min, which was two times higher than that of the unextracted pre-drilling hole, the concentration was increased by more than 30%, which could effectively increase the amount of gas extraction and extraction efficiency.