Abstract: Addressing the challenge of surrounding rock control in large-section roadways passing through geological structure zones, the study takes the return air roadway passing through a geological structure zone in the 901 mining area of Xialiyuan Coal Industry as the engineering background.Drilling exploration was employed to determine the type and impact range of the roadway's geological structure.Numerical simulations were conducted to compare and analyze the stress state of surrounding rock under different cross-sectional shapes of large-section roadways.The study also investigated the surrounding rock control effects under different support parameters for large-section roadways.The research results indicate that the geological structure of the return airway in mining area 901 is an ellipsoidal efflorescent oxygenized zone with a short axis of 62 m and a long axis of 81 m, which has an impact range of about 60 m on the roadway.The stress state of the surrounding rock in the straight walled semi-circular arch roadway is significantly better than that in the rectangular roadway.The deformation of the surrounding rock in the roadway decreases within a certain range with the increase of bolt length, spacing, and pretension, and increases with the increase of bolt row spacing.Reasonable support scheme for large-section roadways passing through geological structure zones was designed and applied.The on-site monitoring results show that after adopting the optimized support scheme, the maximum convergence of the roadway's roof and floor is 156 mm, and the maximum convergence of the two sides is 187 mm, indicating a relatively ideal surrounding rock control effect.