Each human era has its own unique architectural embodiment of religious philosophy at the time. Though, many modern religions have developed their own architectural expression based upon each own religious doctrine, one of the main native Korean religions, Won-Buddhism, has not developed its own proper architectural expression yet. So, the goal of this research is to find the probable architectural design methods for Won-Buddhism doctrines. 1) The history of Won-Buddhism architecture is comparatively analyzed to find the architectural trend of Won-Buddhism. 2) Modern religious architectural cases are analysed and compared between plastic expression and spatial expression types. 3) Won-Buddhism doctrines are analysed to find key characteristics to be used as architectural design concepts and method. Based upon analyses, the main characteristics of Won-Buddhism doctrine are synchronicity, circularity, and liminality, which are found to be similar to the trans-boundary characteristics of contemporary architecture. In the future, more study on these characteristics and how they are materialized, the probable design methodology for Won-Buddhism Doctrines can be proposed.