In order to determine the location and extent of the water-rich anomalous zone within 100 m of 108 working surface floor of Xinyuan Mine, the relationship between the anomalous water-rich zone and the two roadway of the working surface revealed tectonics was analyzed, as well as the distribution of the water-rich geological tectonics within the detection area. By using the integrated underground physical detection technology (audio-electro-transparency method and direct current method), the pre-mining three-dimensional detection was carried out on the working face, and the detection area covered the entire 100 m area under the bottom plate of the working surface. The original geophysical data were qualified and proved effective. After data processing and analysis, 3 electric abnormal areas and 4 audio abnormal areas were demarcated in the working face, which solved the hydrogeological problems in the later mining process of the working face, and achieves good economic and technical results.