Abstract: Tunnel seismic prediction ahead technology has been widely used in tunnel engineering,but very few in coal mines.The hydrological geology is much more complex in coal mines of China.The menace and accident of flood are on the rise in the key coal mines in China.This paper presents a comparison of the similarities of the geological conditions between coal mine and tunnel.Based on the successful predicting results about water-bearing bed,solution cavity and faults in tunnel construction by using tunnel seismic prediction ahead technology,it can be concluded that this technology is also possible in predicting water source and its entryway causing a flood.Applying this technology in predicting coal mine flood,it will provide a powerful indemnification of safety technology to achieve the objective of safety in production in the "11th Five-year plan",and provide a reliable geological data for engineers to draw up a construction program and to take corresponding measures avoiding this kind of disaster.