Abstract: According to the complicated mine roadway space relationship, less object expression on the inrush water spreading route and other problems in the min e water prevention and control work, a water flow spreading generation algorithm of any water inrush point was provided.With the establishment of the 3D mine roadwa y model, water flow downward spreading in the mine roadway, water table uprising and other condition were simulated.Then according to the predicted water inrush qua ntity and the weight factor, from the traverse point, the water flood scope could be generated.The realization method of the water inrush spreading route in the mine cou Id rapidly and directly express the water inrush area and could provide the basis to set up the optimized route of the mine escape and rescue and to the decision makin g of the emergency rescue.