Abstract: In view of the working face of 3302 transport slot tunneling in Xing Cun coal mine as the research background,using the analysis method of FLAC^3D numerical simulation,the stress distribution of the surrounding rock was simulated respectively when 3302 transport slot distance fault was 60 m,50 m,40 m,30 m,20 m,10 m.Through the analysis of stress variation of deep roadway at different distances from the fault,the stress distribution law of the impact of fault on tunneling working face was studied.In this way,the rule of fault affecting the surrounding coal rock at digging surface mining was obtained,that was,the closer to the fault,the more concentrated the stress concentration,the greater the elasticity of coal rock,the greater the risk of impact.Finally,actual monitoring data indicated that the control measures had a good effect in the actual production process after taking the appropriate pressure relief measures.