Abstract: This article evaluates the continuous operation rate, station noise levels and event waveform quality within the Jiangsu early warning station network system. It also assesses the monitoring capacity of this network, concluding that the Jiangsu earthquake early warning system operates stably with high-quality data recording. The provincial monitoring capacity can achieve M\mathrm_L 1.0 in local areas and M\mathrm_L 1.5 in most areas. The Jiangsu early warning network has preliminarily developed the capability to quickly report earthquake intensity and provide regional earthquake early warnings across the province.