Abstract: In order to effectively prevent the strata pressure bump occurred when No.3below322 coal mining face passed through coal pillar zone in No.3upseam, a theoretical analysis, engineering analogy and other methods were applied to a study the mine strata pressure bumping danger of the coal pillar zone and the preventi on measures in combination with a micro seismic monitoring and measuring and fine coal inspection data. The results showed that under comprehensive influences of a mining depth, coal pillar, mining operation and other factors, the solid sidewalls of the transportation gateway in the coal pillar area was a danger area of the mine strat a pressure bumping. During the mining and pushing forward process of the coal mining face, a micro- seismic event was abnormally distributed. The cutting value ofa b orehole drilling was 1. 6 times higher than the designed coal cutting value. The pressure released with intensive seam boreholes in advance of 60 m in the danger zone could effectively prevent the mine strata pressure bump occurred. The practices showed that with the analysis on the mine strata pressure bump danger in the coal pilla r zone and the pressure released with the advance intensive seam boreholes conducted, the coal mining face with a successful passed through the coal pillar zone coul d be ensured.