Museum education function is drawing attention for strengthening the capacity of creativity and character in today’s fast-changing world. This is because museum education provides opportunities of constructivism learning that features Self-Directed Learning, Inquiry-based Learning, Contextual Learning, Cooperative learning by offering diverse learning experience through object-based learning. Meanwhile Objects in object-based learning are categorized into three groups such as primary core objects, secondary sub objects and third supplementary objects according to relationship to education’s subject and scope of object’s usage. There is wide use of these objects for learning about object and learning with/through object. Accordingly, this study looked into the program development process using
National Museum of Korean Contemporary History’s objects related to the first diplomatic group towards America in Joseon Dynasty. This study can find its meaning in suggesting example of education program using third supplementary objects with lack of primary core objects, secondary sub objects.