Abstract:

Under the background of the information age and big data, the status and the role of the digital resources are prominent. Based on Web of Science database and CNKI database, by using the scientific mapping knowledge tool Citespace and HistCite，this article analyzed the topics, authors, references, research trends and hotpots of digital preservation, and displayed the thread of this field from perspective of complex networks by using Gephi, so as to grasp the significant literature and comprehend the relationship between coreauthors, as well as to be helpful to expand new research perspectives and topics.

Key words: Digital resources, Longterm preservation, Complex networks, Research thread, Knowledge mapping