The Mathew method and numerical simulation method were combined to determine the reasonable structural parameters of the stope in consideration of the deficiencies of the single application of Mathew method or numerical simulation method. The shape factor S could be determined through the identification of stability coefficient N combing the relationship between N and S in the stability chart. Furthermore, several programs of stope with the same shape factor S were put forward. The determination of reasonable stope structure parameters were made through the analysis of stress, displacement and shape of failure zone volume in different programs with numerical simulation of different program. This technology is proved to be of great instructive significance to mines in terms of the determination of reasonable stope structural parameters by the specific applications and analysis of site industrial test results.