Abstract: The rock burst is the main coal-rock dynamic disaster in the steeply-inclined coal seam, which is highly destructive. In order to timely and accurately identify the strike and the tendency stress concentration zone of working face, reasonable design of pressure relief and protection measures, the stress evolution process in the advanced area of the working face was continuously monitored by stress online monitoring system. The monitoring results show that: in the strike direction, the influence of the lead support pressure is 5-20 m ahead of the working face, and the tendencies stress concentration zone is 6-13 m away from the roadway wall, which is different from the horizontal and gently inclined coal seam. After the research results were applied to guide the implementation of the on-site pressure relief project, the stress concentration in the above areas was significantly reduced. The above research has important guiding significance for the steeply-inclined coal seam pressure relief projects