Abstract: Abstract：Based on improving coal recovery efficiency, achieving normal recovery and successfully completing replacement of working face for safety production requirements, 25m coal pillar of 3-508 fully mechanized working face in Jingfang coal mine has been optimized and proposed high-strength stability support scheme. A new energy absorbing rock bolt has been developed and its mechanical properties have been investigated. A simulation model in the mining process is established by FLAC3D to study the differences of the surrounding rock stress，deformation and plastic zone distribution law under different pillar widths and different support methods．The results show that the coal pillars width can be decreased to 5-10m with supporting by the new high energy absorbing rock bolt, which means more coal resource can be exploited. The results will provides important scientific basis and instructions on the width of coal pillar and a new supporting method to keep stability of surrounding rocks in JingFang coal mine.