The purpose of this paper is to improve the understanding of the relationship between the Yeongsan River tomb community and central Baekje by examining the context of trade, distribution, and consumption of beads excavated from tombs in the Yeongsan River basin in the 5th and 6th centuries. Specifically, we examined whether the local political and economic hierarchical order, that is, the prestige-good economy, was in operation at the time. We first estimated the scope and level of the maritime trade network in which the Yeongsan River tomb groups are presumed to have participated as a source to create power. Next, the structure and characteristics of the elite network distributed beads were examined. We then looked at the context in which beads were consumed. Based on this, We propose that attention should be paid to the diversity observed in the elite networks between the 5th and 6th centuries in explaining the relationship between the Yeongsan River Basin and central Baekje. As Baekje's influence gradually expanded after the mid-tolate 4th century, various forces continued to flow into the Yeongsan River Basin, forming a new network. In the process of the social order being reorganized by Baekje, Mahan’s local forces shared the beads as a prestige good, further strengthening the existing network, and at the same time bringing in external forces into the network to form a new exchange relationship. The formation of such a network ultimately means that the various forces in the Yeongsan River Basin laid the foundations for interdependent relationships or alliances, and further suggests that the relationship with central Baekje was based on complementary cooperation.