Abstract: The coal seam scouring zone usually causes changes in the morphology and thickness of the coal seam, which adversely affects the comprehensive mechanized mining of the coal mine. There is an electrical difference between the scouring zone and the coal seam. Using multi-frequency radio wave perspective detection technology can effectively delineate the coal scouring zone. Combining the results of perspective detection of electromagnetic waves under different frequencies and detection distances, the applicability of perspective detection of electromagnetic waves under different conditions was analyzed. The actual detection results show that the electromagnetic wave perspective detection technology is an effective geological anomaly detection method in the mining face. Under the premise of ensuring the transmitted electromagnetic signal intensity, the detection frequency and the smaller detection point distance can effectively improve the resolution.