<p>High pressure water hazards in deep coal mines pose a serious threat to mining safety. This study proposes a novel and systematic evaluation method for assessing the effectiveness of advanced methods for regional treatment of limestone aquifers in deep coal mines. The lack of an effective evaluation system has hindered the optimization of water hazard control strategies. To address this, we developed a comprehensive multi-factor evaluation model that integrates GIS-based spatial analysis, statistical modeling of grouting data, and aquifer water-blocking capacity assessment. The integration of surface-directed multi-branch horizontal well data with GIS zoning methodologies provides a more precise and quantitative assessment of grouting effectiveness. Field validation in multiple mining areas demonstrates that this approach greatly enhances the reliability of water hazard governance, providing a scientific and practical tool for safe and efficient deep coal mining.</p>