Abstract: A large number of mined-out areas and filling stope were formed after Dongguashan copper mine finished large-scale mining of step 1 and step 2 pillars，resulting in a very complex stress distribution in rock mass.The mining conditions of panel isolated pillar had changed radically.Through the research analysis on the mining state，two stoping schemes were proposed and contrasted from aspects of mining difficulty，and mining recovery and mineral movement volume with 52-54 isolated pillar line as a case.The two stoping schemes of isolated pillar were simulated with the numerical simulation software FLAC^3D.The results showed that: in Scheme 1，side wall appears large displacement，where collapse and a large plastic zone are easily formed.In scheme 2，side wall displacement is less after recover of isolated pillars.For the stress concentration zone during stoping，it is necessary to reduce the room span and avoid the ore wall from further damage，so that the mining activities have a less impact on surrounding rock.Through comprehensive analysis on the two schemes，the scheme 2 is relatively reasonable and feasible.

Key words: Deep mining, Isolated pillar, Stability analysis, Numerical simulation, Mining method