Considering the characteristic of high energy consumption of nodes and efficiency network transmission problem in large-scale three-dimensional underwater acoustic sensor networks, this paper proposes an algorithm for underwater acoustic communication sensor network routing based on the node location and LEACH algorithm, which takes the method of positioning, clustering, waking up and arranging. First of all, it gathers the location information of nodes, and makes underwater nodes into different clusters through clustering methods, wakes up the nodes we need and sleep the others. In the data communication process it is needed that waking up cluster unit timely and making sure the cluster nodes need to be waked up in time, making them in the active state, and sleeping the nodes we don't needed to save energy. We choose the best node to transmit information in the cluster. Simulation results show that the algorithm can improve the overall lifetime.