Radio wave tunnel perspective technology was used to detect development of geological structure in working face and delineate anomaly range of concealed geology accurately, which was significant to safety production. Taking 9315 working face of Xingtai Xipang Mine as an example, measured field strength and CT integrated imaging analysis were used. The measured defect was complementary and results were more intuitive, which had great significance to further fine interpretation of concealed structure ( fault、subsided column and so on ).