Underground coal mining in water-bearing rocks has its specific features which have to be considered during early development, driving and coal faces operations and liquidation works connected with coal mines enclosure.In more details is described mining working preparation, mining complex installation and longwall face production.After many miscarriages it was necessary to eliminate difficult mine geological conditions influence by using mine drainage both from the surface and from underground workings and by construction of special mining equipments which correspond with conditions in Southmoravian lignite field. The outstanding progress achieved in these activities enabled recent lignite production.Recommended rules for mining activities in Southmoravian lignite field are given by practical experience, observations and theoretical conclusions connected with coal mining in difficult mine geological conditions in water-bearing rocks.