This study comprehensively analyzes Chinese ceramics excavated from Koryŏ -period sites to examine regional circulation patterns and reconstruct maritime trade routes. Based on a comparative examination of approximately 1,250 objects housed in domestic and overseas museum collections and around 800 excavated specimens, the study considers kiln site, ware types, vessel forms, and quantities.The results reveal that the Kaesŏng and Haeju regions contained a diverse mixture of northern and southern Chinese ceramics and exhibited a wide range of vessel types. In contrast, the southern regions of the Korean Peninsula were characterized by a predominance of Jingdezhen qingbai ware, Ding ware, Yaozhou ware, and black—glazed ware, while the Jeju region stood out with a remarkably high proportion of Longquan celadon. These disparities in types and vessel forms of Chinese ceramics excavated across the Korean Peninsula clearly reflect the regional characteristics of consumption patterns and distribution networks.Furthermore, while previous literature-based studies generally suggested that the southern route—departing from Mingzhou in Zhejiang Province after 1073 and traveling via Heuksando Island along the southwestern coast of the Korean Peninsula—was the primary maritime route to Koryŏ, this study presents a different perspective. By comparing the analysis of excavated ceramics with shipwreck artifacts and port sites along the northeastern and southeastern coasts of China, this research suggests that the Chinese ceramics entering Koryŏ likely departed from coastal ports in Hebei Province or the Shandong Peninsula, traveling across the Yellow Sea via the northern route. As an empirical approach based on excavated objects, this study offers a new perspective on the regional circulation and trade routes of ceramics, the primary commodity of maritime trade during the Koryŏ period.