Abstract: Aiming at rock burst coal mines which have extra-thick rock stratum, the extra-thick rock stratum is considered as the main key stratum of overlying strata, its stability is related to the safety of the whole stope. Combined with the engineering cases of years of research, the steady stage of extra-thick rock stratum mining is analyzed by numerical simulation, focuses on the occurrence mechanism of rock burst before and after stability. Under the geological conditions, the rock burst control can be divided into two ways. Firstly, under the stable extra-thick rock stratum environment, the increase of mining area causes the load on extra-thick rock stratum transfer, it leads to the high static stress formation of surrounding rock and triggers the spontaneous rock burst; secondly, the instability of extra-thick rock stratum leads to the superposition of strong dynamic load transferring to stope and static stress, then gives rise to the surrounding rock stress mutation which causes the mine earthquake induced rock burst. Before and after the stability of extra-thick rock stratum, the high-precision microseismic monitoring system is used to judge the roof movement scope and development trend of the extra-thick rock stratum stability. At the same time, the online stress monitoring and early warning system is adopted to carry out real-time analysis for the variation range and development trends of surrounding rock stress as well as the real-time warning for danger area.