震相分析是地震监测的一项基本工作，地震事件主要包括天然地震、人工爆破、塌陷。总结江苏数字地震台网的波形资料，从震相、频谱、振幅比3个方面进行对比分析，找出天然地震、人工爆破、塌陷的不同之处，能够在地震定位过程中快速地识别出天然地震、人工爆破、塌陷，并把此方法在江苏台网实际工作中得到应用。

The phase analysis is a basic work which the earthquake monitors,Seismic events usually include natural earthquake and artificial blasting and collapse.In this paper,the waveform data recorded by JiangSu Digital Seismic Network are summarized，From the phase and spectrum and amplitude ratio were analyzed in three areas，Identify natural earthquakes and artificial explosion and collapse of the difference，The earthquake location process can quickly identify the natural earthquakes and artificial explosion and collapse，This method and the seismic network in Jiangsu has been applied to practical work。