In this paper, the bibliometrics method and CiteSpace tool are used to draw the knowledge map, and the literature related to Korean research collected in CNKI database from 1980 to 2020 is analyzed quantitatively and visually. By investigating the time distribution of documents, periodicals, authors and scientific research institutions, The author tries to analyze the research status, research hotspots and research trends in this field, and draw a scientific knowledge map to intuitively present the metrological characteristics of Korean language research, aiming at excavating and exploring the evolution of Korean language research from a multi-dimensional perspective and combing the knowledge structure in this field. The results show that the total literature volume of Korean language research in China presents three stages: stability-growth-cycle, in which the number of core journals tends to be stable and the number is relatively small; The core leaders of the discipline include Bi Yude, Li Dechun, Jiang Chunyu, Jin Xianghua, Jin Yongshou, Jin Guangzhu and other scholars; The core research circle is concentrated in Yanbian University, Liaodong University, Dalian Foreign Studies University, Shanghai International Studies University, Sichuan International Studies University, Central University for Nationalities, PLA Foreign Languages Institute and other institutions. Journals are concentrated in 『Korean Teaching and Research』 『Journal of Yanbian University』 『Minority Languages of China』 『Dongjiang Journal』 『Chinese Language Learning』 『Korean Language in China』 and other journals. Research hotspots include "Korean language and teaching mode, Korean language and higher vocational colleges, Korean language and vocabulary, Korean language and pronunciation, Korean language and grammar, Korean language and comparative study" and other topics. Finally, it summarizes the existing problems and suggestions of Korean language research in China at present. I hope this research results can provide some reference value for Korean scholars.