Abstract: According to the Huaibei Zhuxianzhuang Coal Mine 8 coal mining area II 5 conflict resolution requirements, using the ascending mining method that mining 10 . The numerical simulation indicates that mining-induced stress shell（MISS） is formed by high stress in surrounding rock above the working face. In the early mining period, stress shell formed a relatively complete and above the casing stress concentration degree is high. MISS gradually upward development with the working face advancing and height is about 111.4m. The shell and the shell based continuous dilution and tends to be steady. The low stress area in MISS becomes larger and larger under the protect of MISS with the effect of MISS, while the casing stress concentration degree subsides. THE numerical simulation and similarity simulation experiments show that the 8 coal roadway and the roadway floor shall be respectively arranged on the stress within the protective shell and 14m in floor of 8 coal where roadway surrounding rock here stress concentration degree is lowest, the damage is smallest and roadway most stable .