Abstract: Due to the deadline of 2015 about research of bibliometrics of digital library, it is necessary to summarize the latest research dynamics and trends of digital libraries in recent five years.CiteSpace, Netdraw and other visual analysis software were used to analyze the amount of published papers, distribution of publishing institutions and journals, key words research hotspots and trends, and clustering of research topics.The results show that the core author team and research institutions have taken shape, covering the core journals of library and intelligence and other fields.Cluster analysis found that the research topic was divided into seven trends,namely, reading promotion and reading service research under digital reading environment;digital humanities,digital academic and digital inclusion research with digital literacy training and education as the main line;research on rational use, copyright and digital publishing;research on digital library service under big data environment;research on digital transformation service in the new era of library development;research on integration and service of public digital cultural resources;research on co-construction and sharing of digital resources and services.

Key words: digital library; bibliometrics; visual analysis; research theme; research trend