[Purpose/significance] This paper sorts out the application research results of knowledge graph in online academic resources in recent years, in order to provide reference and reference for the further study of the application of knowledge graph in online academic resources. [Method/process] Through literature research, this paper analyzes the application of knowledge graph in online academic resources research in recent years, and organizes the research situation in the process of constructing academic knowledge graph. [Result/conclusion] At present, the application of knowledge graph in online academic resources focuses on academic knowledge graph, scientific literature recommendation, academic knowledge discovery, semantic publishing, academic social networks, scholar portraits and academic resource sharing, but the depth of research is still in the early stage. Based on these foundations, the problems existing in the current research are expounded, and the future research directions are pointed out.