Abstract: According to existing explosion-proof geological advanced detectors, which does not have the function of remote control, may cause some security problems, our team designed a transmission system based on EDSL, which shows lots of features, such as long-distance, high-bandwidth, communication stability, and fast routing and putting into use, this apparatus can detect a variety of geological conditions by long-distance and pilotless control styles in underground coal mines or tunnel, reducing some possible accidents caused by the unknown geological conditions and secondary disasters.