The Integrated Mining Geophysical Technology for detecting the location and water content of the collapse column is put forward in this paper. The radio-wave penetration method can detect the relative locations of abnormal structures such as collapse columns, faults and thin coal layer areas, and the mine transient electromagnetic method can estimate the water-containing situation of these structures based on the variation of the resistivity in the detection range. Emphasis of this paper is placed on describing the application of the radio-wave penetration method and the mine transient electromagnetic method to exploring the collapsing column in No.7218 working face coal layer. The obvious reflection of the radio-wave penetration method to the electrical property of the hydrated structure is discussed theoretically, the application of the synthetic curve method and tomography to data explanation is studied, and the hydrogeological characteristics shown by the "V" and semi-"V" synthetic curve are also explained.