In design of large scale in wireless sensor networks（WSNs）

multiple Sink node locating is the key step in networks topology.It is the most important to control energy-consumption of networks communication.An optimized locating algorithm based on genetic evolution for Sink node is presented.It used overall situation optimizing capability of genetic algorithm

obtain sub-optimal solution in limited time

and then generate work topology of monitoring networks.Simulation experiments show that compared with heuristics algorithm

the result of networks layout generated by this algorithm can obviously improve overall situation energy control.