Visualization Analysis of Domestic and Foreign Cyber Security Research Based on CiteSpace

Objective To visually display the research results of network security by knowledge mapping, analyze the research status of this field, and provide reference for future research in this field. Methods In this paper, 2197 articles in “CNKI” and 4932 articles in “WOS” database from 2012 to 2021 were visualized by literature metrology. CiteSpace software is used for metrological analysis and knowledge mapping. Results The research shows that the total number of network security documents in 2012–2021 shows an upward trend. There is less cooperation among the core authors. The US and China dominate the field of cyber security. There are both similarities and differences in network security research at home and abroad. Foreign research focuses on network attack and defense, while domestic research is widely distributed, including personal information, digital economy, artificial intelligence, political security and international governance. But the domestic research lacks the depth, and should strengthen the research on the cyber attack and defense.