The purpose of the study is to analyze education related keywords of Rodong Sinmun, a North Korean newspaper that serves as the official newspaper of the central committee of the Workers’ Party of Korea, and then compare the trends of education before and after Kim Jung-Un’s secretive supreme leader. The research was used 2,524 keywords in the title of the Rodong Sinmun from 2014 to 2018, and visualized the networks among the keywords by Gephi 0.9.2. As the results, the study found that there was a significant change of keywords before and after Kim Jung-Un’s secretive supreme leader. Before Kim’s reign, keywords in Rodong Sinmun highlighted socialist education. However North Korea’s education was emphasized real educational issues such as education information, lifelong education after his reign. Second, They were also focused on scientific technique education. Third, Korean schools and students in Japan was in demand of Rodong Sinmun, but the educational exchange of China was shown in 2018. Based on the results of this analysis, the research presents highly significant theoretical and practical implications.