This study aims to explore previous research on the expression area of elementary school physical education subjects in the COVID-19 situation. Accordingly, we consider the direction of research in the expression area of non-face-to-face classes that have replaced face-to-face classes. Moreover, this study anticipates the stabilization and sharing of various teaching methods by supplementing existing online classes at present and the smooth progression of expression area classes. This study is a literature review on the Korean Journal Citation Index (KCI), a system that analyzes citation relationships between papers by converting journal information, paper information, and references from academic organizations publishing academic journals registered (candidate) by the National Research Foundation of Korea into a database. Data were collected and analyzed from KCI. The findings are as follows. First, in expression research, various methods have been investigated to conduct classes appropriately by combining the advantages of existing face-to-face classes prior to the COVID-19 period and non-face-to-face classes using online devices during the COVID-19 era. Second, to ensure that classes in the area of expression run smoothly, research was conducted on restructuring and re-systemizing the curriculum so that online classes and physical activity-centered offline classes can run concurrently. Furthermore, research was conducted to develop teaching methods for online and offline expression areas, research content, and a platform to use teaching content. Such method will be disseminated for implementation.