Abstract: The passage is directed against the situation that in mang points the auxiliary slope of Guizhou Laoyingshan Coal Mine gushing out water and controlling effect is poor. According to the hydrogeological condition,the author analyzed water sources and through in-depth study,put forward the feasible prevention and controlling of water solution,which is fissure grouting combination of plugging and dredging hydrophobic behind the wall,it has a pratical referenc for similar limestone water water governance.

Key words: Water source, Fissure, Limestone, prevention and control measures, grouting