Abstract: The recycling of the pillars in room and pillar mining method has become a major technical problem due to its high safety risks and high recovery costs.Taking Nanwenhe Tungsten Mine as engineering background,this paper proposes to use artificial concrete pillar replacement method to recover high-grade ore pillars.The gob area and pillar stability were evaluated using CMS goaf detection technology and Flac3D numerical simulation software.The research indicates that the artificial concrete pillar can meet the safety requirements of the mining pillars in the trial stope,and provide a scientific reference for the future safe,efficient and low-cost recovery of the ore pillars in Nanwenhe Tungsten Mine,and also provides valuable reference for similar mine pillars in the future.