Abstract: Mine water inrush is a common mine disaster which is sudden and intense. When a mine flood occurs, In order to reduce material losses and casualties caused by disasters, a mine flood escape route planning method based on bidirectional A* algorithm was proposed. On the basis of fully considering the factors affecting the escape of roadway, a reasonable evaluation function was selected, and the escape route is planned by bidirectional A* algorithm to achieve optimal design. Combined with the Wangjialing coal mine example and comparing the planning result of the bidirectional A* algorithm with the planning result of the traditional A* algorithm, the simulation results show that the escape route of the algorithm is less than the traditional A* algorithm node, and the path is better, so to a certain extent It can improve the escape rate of employees and has certain application value.