多数WSN的应用都是以节点位置信息为基础，其所监测的事件与节点的物理位置信息存在着密切的联系，若无位置信息，监测数据也就无意义，而节点的位置信息又与网络安全息息相关，因此，WSN的网络安全管理至关重要。本文简单阐述了WSN的特征与应用，分析了WSN的网络安全特征与需求，并探讨了WSN的密钥管理与安全定位两种网络安全管理机制。

Most applications of WSN are based on the location information of nodes. The events monitored by WSN are closely related to the physical location information of nodes. Without location information, the monitoring data is meaningless, and the location information of nodes is closely related to network security. Therefore, the network security management of WSN is very important. This paper briefly describes the characteristics and applications of WSN, analyses the network security characteristics and requirements of WSN, and discusses two kinds of network security management mechanisms of WSN: key management and security location.