在有关岩体力学的计算和试验工作中,由于测试条件的限制和岩体的力学性质复杂多变,使反演方法成为一种重要的分析手段.本文提供一种多元参数的择优方法——正交设计法,可以大大减少进行反演计算和试验的工作量,提高精确度,降低盲目性.最后通过一个巷道变形的实际问题算例,具体说明了这种方法的使用过程. In the calculation and test work of rock mechanics, due to the limitations of test conditions and the complex and varied mechanical properties of rock masses, the inversion method has become an important analytical tool. This paper provides a preferred method for multivariate parameters— Orthogonal design method can greatly reduce the workload of inversion calculations and experiments, improve accuracy and reduce blindness. Finally, a practical example of roadway deformation is used to illustrate the use of this method.