Abstract: In order to improve the detection effect of coal mine roof water damage, based on the mine electrical exploration principle, combined with the factors of high altitude work, an efficient and fine roof water-bearing detection system was proposed by using the multi-channel detection network of roof electric method as the detection mode, the telescopic detection rod as the high-altitude electrode arrangement mode, and the sponge coupling sleeve as the data acquisition optimization device. The results show that using this system can improve the detection efficiency of mine roof electric method, eliminate the safety hidden danger of high altitude operation in exploration, optimize the quality of data acquisition, and realize the efficient and fine detection of water bearing of coal mine working face roof. The detection effect is ideal and the results are reliable.