Abstract: With the gradual increased intensity of gas control, the effect of regional gas control is remarkable, but the problem of low permeability and poor gas drainage is still outstanding. Aiming at this problem, a large amount of data were collected and analyzed in the field, and the distribution of gas content in coal seam was analyzed. On the basis of deep research on the actual gas geological conditions in Jiaozuo Mining Area, a series of drilling and expanding drilling tools are formed. The application effect is remarkable, the pressure relief range is about twenty times, the volume of the coal body is increased by nearly one hundred times, the gas drainage quantity is 2 to 3 times of the hole drilling, and the time of gas drainage is shortened by 1/3. The influence range of hydraulic punching is 6 m to 7 m along the upper tendency, 2 m to 3 m along the lower tendency, 6 m to 7 m along the strike length.