Abstract:Taking CNKI database and web of Science (WOS) core database as sample data sources, CiteSpace visualization software is used to analyze the research topics and frontiers of data security at home and abroad by means of keyword co-occurrence analysis and emergent word analysis.The research on data security at home and abroad shows an overall growth trend. Foreign data security research is mainly concentrated in the fields of computer science and medicine, while domestic data security research is mainly concentrated in the fields of information science, computer science, management and so on. Data security research at home and abroad mainly focuses on three dimensions: technology, law and management.Personal information, blockchain, artificial intelligence and other research topics are the hot spots and frontiers of data research at home and abroad at this stage and in the future.