Although the effort to accomplish the various modem design fields with richer meanings and representation imbued with creative traditional elements, the actual eco-interior design is quite limited to the arrangement of traditional ingredients to represent the simple and improvisational image for the surroundings without proper direction or identity of traditional Korean style, lacking the fundamental understanding and proper application. This project plan is to represent the ym-yang philosophy based on geometrical symbolism for workspace, and it also combines not only the utilization of unique characteristics of plants and space, which are based on known studies, but also the idea of 'Chi' for the choice of materials and their color based on 'Five-Elerrent' philosophy. The application of Yin-Yang can be seen in the division of floor plan and the 'Yin-Yang' symbol on the wall toward East, and the Five-Element is symbolized by unique materials and color used for each direction. Based on the survey regarding effectiveness of em-interior design work with traditional design elerrents, it appeared that the majority of people were very positive toward the traditional idea of Yin-Yang and Five-Element, and they acknowledged the possible effectiveness of Chi in living. The application of traditional elerrents in modern eco-interior design work is acknowledging the objective value of the tradition, and the understanding of fundamental meaning and its value is the proper way to accomplish the real modern traditional interior landscape design, other than short-term resolution of arrangement of simple elements. Thus, further studies and resean:hes should be continued to introduce traditional design elements for eco-interior design work.