This paper has described the outbrusts of water and the me}tures of the prevention and cure in some coal mines from both genesis and positions of outbrusts of water in coal mines, and also the characteristics of hydrogeological subdivision in China. The present situation乙advances of hydrogeological prospecting of coalfields and hydrogeology of some coal mines are given, respectively. Two stages before and after the middle of the 70}  s are divided.  On the basis of the above description，the author suggests that some problems should be paid attention to for the future.