When ACTS was established as a graduate theological center for all of Asia, it was necessary to obtain accreditation from the government. But it was discovered that according to the Korean educational system no graduate school could exist without an undergraduate institution. Consequently, the Undergraduate program was opened.

The undergraduate school is in an sense, an attached institution of ACTS, although it is outbalancing the ACTS program itself by virtue of its large student body and growing programs. Although the establishment of a undergraduate school was not in the original plans, it has become clear that the undergraduate school can promote the original purpose of ACTS, that is, the evangelization of Asia. The young Korean students who are entering this undergraduate school are expected to have this purpose as their life goal, and in fact, they are firmly determined to devote their lives for missionary purpose. Presently the undergraduate school offers four major programs : Theological Studies, Mission Studies, Mission English Studies and Christian Education Studies.

Theology
The Department of Theology interprets and teaches the Bible based on the Gospel message of salvation by faith in Jesus Christ alone, helps students to practice a God-centered Christian life, and trains them to spread the Gospel to the world as well as Korea and Asia.

Missiology
Students are equipped with the knowledge of mission strategies through the study of evangelization in the past and present based on evangelical theology. They are also trained to be missionaries with a deep spirituality.

Christian Education
The Department of Christian Education helps students understand education based on the confession of faith in the Gospel of Jesus Christ, to plan educational programs and properly practice it in an educational environment.

Mission English
The Mission English Department helps students grow in spiritual maturity, Bible knowledge, and practical ministry skills in English. It provides a solid education both in mission and English so that students are well trained as effective ministers of Christ in all cultures of the world.