Abstract: To evaluate the water abundance of the Boundary sandstone aquifer affecting the 7 coal seam in Xuzhuang coal mine, the thickness of aquifer, sandstone grain size, core drilling collecting rate and fractal dimension are selected as the main controlling factors affecting the water abundance of the boundary sandstone aquifer.Analytic hierarchy process(AHP) is used to determine the subjective weight of each main control factor.The entropy weight method is used to determine the objective weight of each main control factor.The comprehensive weight of main control factors is obtained by AHP-entropy weight method; the water abundance evaluation model of the boundary sandstone aquifer based on AHP-entropy weight method is established by using ArcGIS software.The study area is divided into five levels:stronger water-rich area, strong water-rich area, medium water-rich area, weak water-rich area and weaker water-rich area.The eastern part of the study area is dominated by stronger, strong and medium water-rich areas, while the west is dominated by weak and weaker water-rich areas.The results of borehole loss and the known water inrush points are used to verify the water abundance evaluation results of the boundary sandstone aquifer.The results show that the evaluation results of the model are consistent with the actual situation, which provides the useful references for predicting the water-rich aquifer and preventing water disaster in the roof.