The purpose of this study is to explore the composition and contents of the Korean TSK that include traditional astronomical, clock and weather exhibits, and to suggest its educational availability. Eight traditional science exhibition halls with separate TSK exhibition space and scientific interpretation were selected, and the exhibits from each exhibition hall were collected to be analyzed. The number of exhibits was largest in the order of astronomy, clock, science history, and weather, and most of the explanations were in the form of using panels focused on scientific cultural properties. Among the total of 61 TSK materials, the Angbuilgu was the only one exhibited in all eight exhibition halls, and most TSK materials could only be seen only in some exhibition halls This indicated that there were few TSK materials with universality despite their diversity. Moreover, the period/era and subject of TSK were concentrated on the scientific achievement of some representative scientists and engineers in the Sejong period and Shilhak scholars in the late Chosun Dynasty. The main characteristics of TSK expressed in these exhibits were mostly openness and originality, and some exhibits conveyed both. In each exhibition hall, there were attempts to develop new TSK contents and exhibition methods such as scientific knowledge, scientific activities and processes, operation of devices, background of HOS (history of science), and the storytelling of science history. The findings indicated that in order to achieve proper understanding of Korean TSK and its educational utilization, it is important for the exhibition to allow scientific investigation activities and interaction with the exhibits. Also, it is necessary for TSK to include materials that reveal TSK s long history in a balanced way and focus on scientific knowledge and HOS context explanations.