Abstract: This study addresses critical challenges associated with the prominent safety hazards of the interconnected goaf cluster and the complex technical nature of pillar recovery in the Chifeng Hongling polymetallic mine, utilizing numerical simulation and optimization methodologies to achieve both goaf cluster remediation and pillar extraction. First, numerical simulation was employed to investigate the spatial distribution of ground pressure and the development of potential disaster processes within the overlapping goaf cluster. Subsequently, research focused on key technologies for the synergistic treatment of goaf hazards and pillar recovery, providing a technical foundation for goaf cluster management and pillar extraction. The results indicate that during stope mining, the pillars and surrounding rock within the mined level exhibit a relatively high risk of shear failure. Concurrently, the maximum principal stress decreases in the adjacent levels. Furthermore, while the pillars in the overlying level undergo continuous caving mining, the maximum principal stress within the underlying inter−chamber pillars experiences a minor reduction. Based on the concept of synergistic goaf treatment and pillar recovery, feasible technical schemes for coordinated pillar recovery were initially formulated. Subsequently, fuzzy mathematics theory was applied to optimize the pillar recovery scheme. Ultimately, the integrated block−wise caving and recovery technique was proposed. This approach achieves a synergistic effect among resource extraction, hazard prevention and control, and other engineering activities.