The appropriate selection of roadway support methods and parameters is critical to ensuring stability and managing support costs.In Xiaodonggou Gold Mine,problems such as significant damage to metal meshes after blasting and improper bolt support parameters were identified in the support process of roadways.To address these issues,new metal meshes were selected,and various bolt support parameters were designed.Numerical simulations were conducted to analyze the displacement field,stress field,and plastic zone distribution of the surrounding rock under different support parameters.The results indicate that roof displacement and the plastic zone in the surrounding rock increase with greater bolt spacing.When the bolt spacing increased from 0.9 m to 1.5 m,the maximum roof displacement rose by 37.23 % and 36.32 %,respectively.With increased row spacing,the maximum roof displacement rose by 26.44 % and 27.07 %.Based on support costs and site conditions,the optimal bolt spacing was determined to be 1.2 m×1.2 m.Field trials demonstrated good performance,reducing support costs by 12 % and improving support efficiency by 20 %.