The No.25305 and 25307 faces in Xingtai Mine were the working faces arranged by gob-side entry retaining, and the detection angle was arranged from gob-side entry retaining to the 2 working faces in the construction of transient electromagnetic. This arrangement had achieved good results in the detection of Xingtai Mine. The maps of each detection angle were analyzed, and the obvious low resistance range was not delineated after check and drilling verification. It had guiding significance for the geological work and transient electromagnetic construction of the mine.