Shanxi Lvliang Lishi Jinhui Rongtai Coal Corporation Ltd. 10116, 10209, 10120 working face remain the No. 10 coal seam recovery mining face, and the hydrogeological conditions in this mine area are complicated. Therefore, before the recovery, it is necessary to identify the water-rich situation of the coal and rock layer on the roof and the water accumulation in the adjacent mining area, so as to provide a technical basis for the development of water control measures. In this paper, the underground transient electromagnetic detection technology was adopted to investigate the internal, top plate and peripheral areas of the three working faces in three dimensions, and analyze the data by TEMINT software and SURFER software to clarify the relative low resistance anomalous areas within the detection range, so as to detect the possible major potential water hazards.