Abstract: Due to the high risk of water-inrush in mining activity，and based on the research analysis on the process of the mine water-inrush，the process design mode for the target is adopted to establish the visual simulation system for mine water.That is，through the data processing of the tunnel network，the 3D visual system for the disasters of underground tunnel is designed and realized.Then the improved Traversal Algorithm is used for the numerical simulation on the water-inrush process.Finally，the visual display of the tunnel water-inrush process with 3D visual technology by the mode of time series is achieved.After applying in the mine，its validity and reliability is verified.

Key words: Mine water-inrush, Dynamic visual simulation, Improved Dijkstra algorithm