I. Introduction II. A Mission Initiated by Koreans II-1. Two Korean Pioneers II-2. The Two Pioneers and OMS II-3. The Oriental Missionary Society and the American Holiness Movement III. The Process of Development as a Self-Established Denominatinal Church III-1. The Period of the Gospel Mission Hall(1907-1910) III-2. The Period of the OMS Gospel Mission Hall(1910-1921) III-3. The Period OMS Holimess Church in Korea(1912-1943) IV. The Establishment of an Independent Denominational Church V. Conclusion