Since 1865 the Presbyterian Church of England came to Taiwan to develop the ministry of preaching, the work of teaching in church has been an important channel of cultivating the disciples and expanding the church. Among the teaching tasks, Sunday School is regarded as not only an important foundation of beliefs but also an influential factor of increasing the church members. Initially, Sunday School is established on Sundays for the children to learn about biblical (evangelical) knowledge. The lessons include singing hymns, studying the Bible, praying and learning the biblical truths. A set of organized and systematic Sunday School has been gradually developed by the Presbyterian Church of England from the Late Chin Dynasty to Japanese Colonial Period. Especially, the Presbyterian Church of England established "Sunday School Department" in 1917, mainly responsible for improving the teaching of Sunday School. This study aims to explore the development of Sunday School lessons in southern Presbyterian churches in Taiwan before 1926, including the establishment, educational beliefs, curriculum design, materials and teachers' training of Sunday School. In addition, this study expects to understand the contribution and the expansion of preaching of Sunday School in southern churches in Taiwan.