With the development of informatization and modernization of seismic system,and the number of seismic network is increasing,it is imperative to monitor the operation of seismic network. According to the characteristics of seismic network operation and the actual demand,this paper analyzes and studies many key technologies such as monitoring main elements,operation status flow analysis,failure judgment and alarm,data quality analysis,monitoring information database storage,etc. Moreover,combined with the research and development practice of the existing operation monitoring platform of seismic station network,the specific ideas and methods are given,and the new considerations for future development are put forward,which can provide practical reference for the monitoring of provincial seismic station network or other industries.