The environmental governance and ecological restoration of stone mines have been widely implemented, but issues like ecological degradation and wasteland regression after treatment remain prominent, with limited experience in comprehensive environmental management. Taking the Shilongzhai granite mine in Huanggang City as the research object, this study employs literature review, field investigation, remote sensing interpretation, and fixed-point monitoring to analyze the geological and ecological issues. Key findings include severe landscape destruction, excessive surface water SS, and slag accumulation. Using the Laolinshan mining section as a demonstration area, a comprehensive governance system integrating “slope ecological restoration + rain-sewage diversion + wastewater recycling” was implemented. Measures included three-dimensional vegetation net spraying, rectangular intercepting ditches, and expansion of sedimentation tanks. The results showed a vegetation survival rate exceeding 70%, SS removal rate of 98.9% for production wastewater, and treated water quality meeting the industrial reuse standard (GB/T 19,923-2005). This study provides technical references for ecological and water environment restoration in granite mining areas.