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本文以节省传感器节点能耗、延长网络生命周期为目的进行深入研究，对经典层次型拓扑控制算法LEACH进行深入研究，提出了一种基于环簇型无线传感网络拓扑控制算法RCBTC。该算法以等距圆环固定分簇，无需节点保持全局时间同步，且不需要分配全局唯一标识符，综合考虑节点位置及剩余能量因素选择簇头。经过仿真实验验证，该算法明显降低了能耗，延长了全网寿命。“,”To save the energy consumption of sensor node and prolong the network life cycle,we studied the classic hierarchical topology control algorithm, LEACH, and put forward a ring cluster based wireless sensor network topology control algorithm RCBTC in this paper. This algorithm, which does not require nodes to maintain global time synchronization and globally unique identifier, generates clusters with isometric ring, and chooses cluster head with comprehensive consideration of the node location and the surplus energy factors. The simula tion experiment shows that this algorithm significantly reduces the energy consumption and prolongs the life of entire network.