Abstract
In the 21st century modem architecture, not only environmental problems and sustainable development but also two subjects, 'Globalization' and 'Localization', have become important issues. The modern application of vernacular design which is the design model including the characteristics of region, a people and tradition can be a solution for localization and sustainable development. Vernacular design gives many ideas in respect of organic art and design, the dilemma of modern architecture, and practical solution of its problems, and is considered as an important resource of modern ecological architecture. This study aims to investigate the meaning and types of vernacular design and confirm the development possibility of this design as the important element of modem regional ecological architecture. In addition, through case studies, it will demonstrate that the regional ecological architecture based on vernacular design can solve new multidimensional architectural problems in the 21st century.