Abstract: In order to master the distribution characteristics of lateral gas pressure relief belt of gob, we propose that the position of abutment pressure peak is the discrimination method for lateral gas pressure relief belt. By the use of numerical simulation, the evolution of the goaf side abutment pressure was simulated. The results show that the width of lateral gas pressure relief belt increases with the mining height and the working face length, but the influence of mining height is the most obvious. Gently inclined coal seam mining goaf side gas in the pressure relief zone width cannot be completely covered along goaf digging solid coal side of 15 m range coal, and still needs to implement the regional comprehensive outburst prevention and control measures on roadway solid coal side 15 m range of coal.