Ecological traces appearing in contemporary architecture are based on modern architecture and most aspects on the contemporary architecture are related with the successive trend or break of the modern architecture. The concept of environment in the modern age has established clear destination, as it has been considered as nature. The architecture under a mechanical world view in the modem age has sustained the opposing connection with nature as environment. However, there have been architects maintaining the sympathy with nature in that vortex. This trend has been regarded as same context as ecological architecture and estimated to the outpost of ecological characteristics appearing in the contemporary architecture. This study is to make it clear that the ecological manifestation in the contemporary architecture is based on the ecology in the modem architecture through considering ecological ideals of architects in the modern architecture and considering space composition and structural properties in the modern architecture of ecological paradigm. The scope of this study contains spacial analysis, design strategy, and design types of organic architecture in nature, which has appeared from the modern age. First, the division into period is carried out according to the organic tendency of non-mainstream in the modern architecture: Arts and Crafts Movement, Art Nouveau, Sezession, Expressionism, Organic Architecture, Regionalism, Internationalism. Therefore, this study is significant to be on the search for a start to suggest ecological point of view to architectural space in modern architecture and is search organic characteristics for ecological characteristics in modern architecture; organic relation, thermal buffer space, regionalism, multi-layer, energy efficiency.