Abstract: To study the method of using transient electromagnetic method to detect the goaf of the integrated mine, on the basis of studying the principle of transient electromagnetic method and investigating the background noise, the goaf in the industry square and the production area in Tonghe No.2 coal seam are detected by transient electromagnetic method, respectively. Through data interpretation, the results indicate that there are three broken regions of goaf in the industry square and eight broken regions of goaf in the production area.