The purpose of this study is to examine the studies of Golomb, and based on this, to analyze the strategies and characteristics of Korean elementary school students to deeply understand their three-dimensional representation ability. Golomb has extensively studied children s artistic expression, such as the relationship between children s perception and artistic expression, and the effect of three-dimensional media, which relatively less well known than Lowenfeld s study in Korea. Thus, I designed a field study under similar conditions of Golomb. 8 topics were given to 77 elementary school students, and about 610 results were analyzed in four aspects: dimensionality, uprightness, construction method, and construction sequence. It was found that one student can choose different strategies for representation based on the characteristics of the topic or his/her intention, and does not use one fixed strategy. In addition, the two-dimensional medium had a limitation in representing the three-dimensional object. The various representation strategies according to the topics presented in this study should be considered in the topic of clay three-dimensional representation and teaching plan.