Abstract: Based on the measured data of displacement and loosening circle of skarn roadway,the elastic modulus and cohesion of the surrounding rock body were selected as the inversion parameters,and the optimization iterative calculation of displacement-loosening circle inverse analysis was carried out by the golden section method.The results show that the application of displacement-loosening circle inverse analysis method in the inversion of roadway parameters is feasible,and the results can be used for feedback and to guide the design and construction of roadway support.The inverse method provides a good reference for the analysis of rock mechanical parameters in similar projects.