In the era of digital economy, knowledge management is the core resource management system of thoughts and methods. It is particularly important to compare and analyze the exploration and practical application of knowledge management at home and abroad. Two databases of foreign WOS and domestic CSSCI are selected respectively, and knowledge management from 2000 to 2019 The research subject literature is the research sample, and the CiteSpace 5.6.R3 knowledge graph tool is used to carry out bibliometrics, cluster analysis and co-word analysis on the literature data, comb and discuss the current research status and hotspots in this field at home and abroad, and explore research hotspots The evolution trend of China"s universities, enterprises, libraries and other institutions can provide development suggestions and references.