Abstract: To understand the domestic research progress on the seismic reliability of electricity system, based on the knowledge mapping software CiteSpace, this paper conducted a systematic analysis of the number of publications, authors, issuing institutions, journals and keywords in three levels and four areas of "urban electricity system→seismic (reliability) of urban electricity system→seismic reliability of urban electricity system". The objective was to sort out the historical development path, and clarify the hot issues, core teams and research topics of this area. With thorough investigation of the research topics in this field, the current research status and key scientific issues were identified. Results show that the research topics of seismic reliability of domestic electricity system include seismic hazard, seismic response, vulnerability and reliability; the key scientific issues include seismic damage mechanism and anti-seismic measures of different electrical equipment and facilities, seismic vulnerability methods of different components in power supply networks, resilience assessment methods and enhancement theory for substations and urban power grids, disaster propagation mechanism and quantitative model for interdependent infrastructure systems with power supply networks as the core.