Mineral resources are an indispensable part of human development and also an irreplaceable industryin the modern economic system. Under complex engineering geological conditions, roof stability issues are prominentand remain critical safety problems requiring solutions in metal mine mining. A Flac3D numerical simulation model wasestablished to analyze the roof stability of the Xintai Gold Mine. The analytic hierarchy process was used to determinethe weights of factors affecting stability, and the D-S evidence theory was employed for a comprehensive evaluation ofthe most significant factors. The research results show that reducing pillar spacing and using the backfill mining methodcan decrease pillar stress and effectively reduce the extent of plastic failure in the stope roof, thereby maintaining roofstability. Mining area exploration and roof’s mechanical information have the greatest impact on roof stability evaluation.Among the factor layer, the support condition has the most significant influence on roof stability, while groundwatercharacteristics and structural plane features have the least impact. The D-S evidence theory demonstrates that the mineroof is in a stable state.