关键词: 区块链, 文献计量, 共现分析, 研究热点, 发展趋势

Abstract: The blockchain technology plays an important role in new technological innovation and industrial transformation. Analysing its research status, research hotspots and development trends to provide references for the innovation and development of related industries. By obtaining relevant literature from core journals as samples, using bibliometrics and scientific knowledge graph visualization methods, the six aspects of its publication trend, source journals, core authors, interdisciplinary situation, institutions, and keywords are measured separately. The results show that blockchain research is in a period of rapid growth, and it overlaps in computer, economics and management, and social science; research resources are concentrated in famous colleges and universities, and it is not easy for ordinary universities to obtain national resources and the latest technical information; the number of cross-regional cooperation agencies is small and the frequency of cooperation is relatively small, the cooperation is relatively closed; at the technical level, research is mainly concentrated on the network layer, consensus layer, and contract layer; the application level is mainly in the financial industry and digital currency, and the application of food safety needs to be explored ; at the security level, it is necessary to strengthen the guarantee of data security and pay attention to the protection of user privacy; at the government level, a punishment mechanism should be established to deal with issues, such as threats to information security.

Key words: blockchain, bibliometric, co-occurrence analysis, research hotspots, development trends