Abstract
This article focuses on articles related to the education and research of online courses, through data analysis of keywords in the article, and visual processing using social network analysis software. As an analysis method and interpretation method, social network analysis is developed in the fields of psychology, sociology, anthropology, and mathematics. Since the 1930s, social network analysis methods have been developed in theory and algorithms and more mature complex network analysis method. Therefore, using social network analysis to analyze the educational technology network of the complex network courses can clearly reflect the relationship between the current research status and knowledge in this field. This article further uses social network analysis methods to interpret the data, reveals the knowledge flow and knowledge transfer generated by the educational technology of online courses in the research process, and then analyzes its development trend in future research.