This study aims at searching the Church Building Type and Design Sources of a German church architect who had designed many churches and other buildings in Korea. P. Alwin Schmid(1904-1978) had designed 188 Catholic buildings in Korea for 20 years from 1958 to 1978. In his works there are many excellent Catholic ritual buildings. It was caused by his conviction on the theology and the principles of Church Architecture. And His remarkable achievement is affected by the works of Dominikus Bo"m(1880-1955) and Rudolf Schwarz(1897-1961). Alwin's 5 plan type is relevant to Schwarz' iconographic model, and their approach to 'light' is much the same. But the Character of inner space is the middle of Dominikus Bo"m and Rudolf Schwarz. His works rotted in the Liturgical Movement had been developed in the line of connection with 20th German church architecture. The works of Dominikus Bo"m and Rudolf Schwarz played the role of the teacher of Alwin Schwarz.