Abstract: There are two goaf water accumulation areas distributed in the No.15 coal seam of Bao’an Coal Mine,and the amount of water accumulation is relatively large.If there is leakage,it will easily cause serious impact on environment.In order to clarify the leakage possibility of goaf accumulated water,a risk evaluation model for goaf accumulated water environmental pollution is established based on risk analysis,indicator screening,and weight calculation,and the impact of different influencing factors on the risk level is explained.The results indicate that the complex degree of mine water quality is one of the important factors causing environmental pollution,with a weight value of 14%.Monte Carlo simulation determines its contribution degree and sensitivity degree to risk level classification to be 61.24% and 59.5%,respectively.The risk evaluation results show that the weak risk level of goaf accumulated water to environmental pollution exceeds 60% when there is no leakage.If the risk level rapidly changes to strong risk after the leakage of goaf accumulated water,it is urgent to implement the engineering governance method for long-term storage of goaf accumulated water combined with the environmental protection requirements of the mining area.The research results can provide theoretical basis for risk control management and green mine construction in goaf water accumulation areas.