Abstract: Basic roof of 3F coal seam which is mined in 6303 mining face is hard and steady sandstone with the average thickness of 23 m.The characteristics of its rock burst were that the roof and coal separated and the roof kept integrity,and the rock burst usually happened during the cyclic weighting.After the rock burst,some cross-articulated supports were shook askew and broken off,the cross-articulated top girders broke off.According to the index of bump proneness of coal and rock,weak bump proneness existed in the pure coal and in composed coal and rock,and the dynamic failure process of composed coal and rock was violent.Therefore,the rock burst type of the area is confirmed to roof type and roof-coal type.To this rock burst type,the dangerous area can be handled with next three danger-breaking measures include unload with borehole,reliving shot for coal and reliving shot for roof.