Abstract: In order to further identify the hidden collapse column possibly exiting in Shangshe No.1 Coal Mine mining face of Yangquan Coal Industry, based on the principle of mine radio wave penetration technique, radio wave penetration detection technology and data interpretation method at working face of Shangshe No.1 Mine is studied, which uses 0.5 MHz frequency to detect 15105 working face, the results show that the technology can accurately detect more than 10 m in diameter of hidden collapse column at working face, provides reliable geophysical data for safe mining at working face.