This research team tried to find a new way of studies on history of the Goryeo Dynasty by utilizing bibliographic data related to the Goryeo Dynasty done in the existing studies and archaeology and art history materials recently investigated. Especially, it defined the characteristics of the Goryeo Dynasty as 'pluralism' and tried to explain the characteristics that 'openness and dynamic' are emphasized in politics and society and 'diversity and unity' are done in culture and thought through various subjects of research. For this study, a bibliography related to pluralism and integration of history and culture in the Goryeo Dynasty was written and the deconstruction work was arranged reading the relevant results by field based on it. That is, the work to find key words by reclassifying and arranging the existing bibliographic data from the viewpoint of pluralism, integration, and openness of the Goryeo Dynasty. It found the contents related to pluralism and integration of the Goryeo Dynasty which have been ignored in the existing studies and examined how they are shown in the actual historical records through this progress. In addition, a new angle on the nature of materials related to archaeology and art history known by the surveys of excavating ruins was presented. In this process, living discussions and lively arguments were arranged in the research team and the existing materials could be interpreted from a new perspective. The Goryeo Dynasty's plural characteristics of history and tradition can be examined in many ways. This research team intensified the study by fixing subjects by period about the three periods and presenting individual papers that accord with them. First, in the first period, it examined the aspect that is integrated and adjusted in the order and thought of social status and hierarchy and studied the regional diversity from the viewpoint of material culture. In the second period, it examined the subject about pluralism of the central and local networks of the Goryeo Dynasty. It proved pluralism and hierarchy of the local ruling system from the viewpoint of 'relationships and communication' and studied the matter of active communication between local areas and the central region through the official classes and Buddhist monks. In the third period, the intensified study on international openness and the foundation of self-awareness of the Goryeo Dynasty was arranged from the viewpoint of 'openness and identity'. The plural international relationship of the early days of the Goryeo Dynasty was grasped to be based on multicentricity and hierarchy and the point that the Goryeo Dynasty's awareness of immigrants was open was pointed out. In addition, it treated how the Goryeo Dynasty secured identity autonomously in the plural international relationships. This research team's research results through the three period intensified thematic consciousness through the colloquium related to the subject and tried to expand discussions about pluralism of the Goryeo Dynasty by presenting and discussing the papers which accord with the subjects by period externally in symposiums. The papers presented in the symposiums were amended by reflecting the details pointed out in the discussions, were published in journals, and gain recognition as the results. The research results of this research team will be published to be a series of three books by composing them by period. The contents of the series will be strengthened by including separate papers that can emphasize the subject even though they were not presented in the symposiums in them.