This study aimed to suggest the self expressions on the subject's inner world by exploring the expressional characteristics of dance creation expressing the unconscious world which is buried in the human's subconsciousness beyond the consciousness on the basis of Jacques Lacan's Desire Theory. Art can subline the theory esthetically, and especially the dance art is a passage connecting the consciousness and the unconsciousness, so can form the sympathy toward potential desires through their specific visualization. As one way for establishing the identity, Lacan's theory provides a clue to find a positive union point about the subject of desires. Also, the understanding and interpretation about Lacan's theory showing the human's inner essence can be considered as the function as a slice showing the cycle of potential desires buried in the unconsciousness. Therefore, as the expressional characteristics of dance creation of this study suggest, metonymy through repetition is a cause and result simultaneously which leads a work. For this study accepted the Imaginary, the Symbolic, and the Real among mental territories in Lacan's theory in order to describe the process forming the desire's subject. After exploring the factors of subject formation appeared in the process, and then this study arranged the characteristics found in each stage into the misconception, the difference and the deviation, which were set as the foundation for analyzing the expressional characteristics of dance creation. So, this study suggested the expressional characteristics of dance creation from a creative aspect that understands the desires as human's essence and that the desires can purify and sublime desires themselves. And this study puts its meaning in that it highlighted a positive viewpoint seeing the desire as a productive thing that enriches individual's mental life. As a natural meeting between internal self and external self, the art creation provides chances to discover true appearances of each other. Especially, it can be considered the dance art contributes to transferring and integrating the human's unconsciousness area to the consciousness area. Therefore the author of this study thinks that the dance art should contribute for modern people to free from their inside, pressured and distorted self by continually seeking for new expression methods of subject. Further, the author suggests that creative approaches for created dance works and continual trials for relevant studies should obtain good results.