Ecological architecture is the understanding of elements internal to architecture that can be inferred using ecological concepts, and the establishment of consistently complementary relations with human lifestyles, creating a kind of ecosystem. Dealing with the architectural environment involves recognizing the effect of human elements on the design and structural aspects of architecture, as well as the roles of environmental factors, such as real estate development, scientific research, and education, which affect building construction. Also, architectural environment considers how decision making regarding materials and institutional resources is conducted by government agencies, economic agents, and families. Thus, ecological architecture can be described as being derived from knowledge of the environments, resources, and energy that affect human life. People responsible for designing the future society are obligated more than ever to reflect the ecological demands and direction of the architectural environment into their designs. Such designers need to pursue ideal designs based on ecological knowledge where the architectural environment can become a part of the circulation pattern of the ecosystem. In this study, from among domestic ecological architecture construction cases, the Geumsan ecological architecture was analysed as a case study of ecological architecture planning and system.