The purpose of this article is to compare the Sabi Period stone chamber tombs(5~7th centuries) of the Yeongsangang River basin and the Baekje center in order to reveal the process of transition of these tombs, and to examine distribution characteristics. 15 tomb types were established by combining properties of the main burial chamber and elements reflecting construction technology and burial practices.
According to the results of the analysis, Sabi Period stone chambers in the Yeongsan River basin begin to appear in the first half of Neungsan-ri Phase 2.
The tombs of Shinan and Jangheung are the earliest constructed tombs. In the second half of Neungsan-ri Phase 2, tombs come to be constructed in Naju Bannam, Hampyeong, and Jangseong. During Neungsan-ri Phase 3, stone chamber tombs featuring square plan burial chambers with long passageways become popular. This tomb type is believed to be associated with the Dongha royal mausoleum, and was especially popular around Bokam-ri region and features artifacts belonging to the highest level. In the fourth quarter of the 7th century, stone chamber tombs featuring square plan burial chambers become popular in all regions.
In addition, Baekje officials were dispatched directly to the Sinan Islands, and the areas of Jangheung and Hampyeong. It is also possible that indigenous elite became bureaucrats of the Baekje state in the region of Bokam-ri, Naju. The distribution of the demonstrates a clear break from that of the previous periods and a bias towards specific areas can be observed. It is proposed that Baekje may have diversified its transportation routes (in terms of politics, economy, military) in preparation as it reached its stage of invasion.