Abstract: In order to find out the water-conducted structures in the working face with high confined water, comprehensive detection was carried out on the size and development of the water-conducted structures in the working face by using the radio penetration method and the transient electromagnetic method. The site detection was made in the working face with high confined water in Ganhe Mine, the detection results were verified by exploration boring, and the verification results were fairly consistent. The comprehensive geophysical prospecting technology by combining the transient electromagnetic method and radio penetration method can more accurately detect the water-conducted structures in the working face, which thus provided more solutions for coal mines with similar water-conducted structures.