Abstract: 【Purpose/significance】In order to find the research process and achievement of blockchain in informatics, the research route in intelligence work in big data era.【Method/process】Based on the necessity and feasibility analysis of blockchain entering in⁃ formatics, this paper takes the papers whose thesis is blockchain published in the Journal of informatics as data resource, analysis the burstness and frequency of keywords through the knowledge graph.【Result/conclusion】the research course and achievements are con⁃ cluded and classified. The blockchain research in informatics has two mainline and has been applied in seven areas.【Innovation/limi⁃ tation】From the aspects of work policy, role positioning, core task and the nature of work, this paper discusses the promotion of block⁃ chain in intelligence works and proposes assumptions about the future blockchain research in intelligence work.