现代通信网络无论在规模,速度,还是复杂性上都在不断超越着传统的通信网络。一个典型的网络可能由几百个不同的网络设备制造商生产的满足不同业务和带宽要求的设备组成。因此,告警关联与故障定位在现代通信网络中就显得非常重要。文章提出了基于Petri网模型的告警关联处理方法,用于过滤不必要的告警或无关的告警并有助于故障定位。 Modern communication networks are constantly surpassing traditional communication networks in terms of size, speed and complexity. A typical network may be composed of hundreds of devices from different network equipment manufacturers that meet different business and bandwidth requirements. Therefore, alarm correlation and fault location in the modern communication network is very important. This paper presents an alarm correlation method based on Petri net model, which can be used to filter unnecessary or irrelevant alarms and help locate faults.