Abstract：Based on monitoring the “time-space-intensity” of dynamic hazards，such as rockbursts，the research on activity rules of mining shock in deep coal mine is presented，especially in the area with high-stress concentration. By the microseismic(MS) monitoring system of Sanhejian Coal Mine，the activity rules of mining shock in the complete mining process of high rockburst liability working face 9202 are analyzed. The achieved results are as follows. (1) The strong correlation between the activity of mining shock and the district¢s maximum vertical stress gradient is revealed：the higher the maximum vertical stress gradient value is，the stronger mining shock signal is. The frequency spectrum would obviously move to a lower frequency band. (2) The different types of mining shock signals have the corresponding waveforms and frequency spectrum characters. Signal caused by relieve-shot presents the wide frequency spectrum，multi-peak high frequency characteristics，but rockburst omen signal shows a lower frequency and amplitude，and the main shock signal has a higher frequency and amplitude compared to omen signal. (3) To monitor and recognize rockburst danger district，the strong correlation among the intensity of mining shock signal，the amplitude of electromagnetic emission(EME) signal and drilling bits is observed. At last，the weakening and controlling technology of mining shock intensity was put forward on the basis of reducing the stress concentration factor，and in-situ practice，the anticipated effects are obtained.
