Abstract: The disturbance stress of working face 11141 of Liangbei Coal Mine was monitored by independent developing real-time monitoring system. By combining engineering practice method with numerical simulation, the change characteristics and laws of the disturbance stress of the coal ahead of the working face were analyzed specifically. The results showed that there were four changing phases of the coal disturbance stress ahead of the working face11141 in Liangbei Coal Mine - original stable phase, slowly increasing phase, quickly increasing phase and stress relief phase; The disturbance influence range was about 100 m, the peak stress value was about 35 MPa and the stress concentration area was about 10 to 30 m.