七号信令网是目前通信网中的重要支撑网之一。本文介绍了七号信令的优点及应用 ,重点介绍了七号信令网中普遍采用的负荷分担技术 ,包括负荷分担的基本原理、信令网络的结构 ,及负荷分担的具体实现方案等。正确运用负荷分担技术可提高七号信令网络的可靠性、安全性 ,有利于提高整个通信网络的运行质量 The SS7 signaling network is one of the important support networks in the current communications network. This paper introduces the advantages and applications of SS7, and focuses on the commonly used load sharing techniques in SS7, including the basic principles of load sharing, the structure of signaling networks, and the specific implementation of load sharing. Correct use of load sharing technology can improve the reliability and security of SS7 signaling network and improve the operation quality of the entire communications network