Abstract: According to the drilling and geophysical data obtained from 16^th seam in Wusuotun coal mine, and based on the analysis and correlation of stratum, we discussed the existence and properties of Wusuotun fault. The result shows that the so called "Wusuotun reverse fault" couldn't be found in the detected area which extends from the west of 16101 working face to the field boundary. There exist possibly 3 reasons for this phenomenon, one is that the fault doesn't incised into the 16^th seam, the second is that the original fault strike is not correct or the previous knowledge of the fault is wrong and the third is that there is no fault in this area at all. By consulting previous literature, by means of geophysical comparison and analysis of section, we consider that there does not exist reverse fault between Zhaopo mining field an Wusuotun mining field, so the original geological data is wrong. This study is significant to the increase of reserves and the lifetime extension of the coal mine.