This paper describes the motion characteristics as the Large-Scale Floating Coal Transshipment Station (LFTS) System considering the effects by motion of LFTS and large bulker. Because the topography of the seabed near East Kalimantan Island, Indonesia's main coal production area, is shallow, it is difficult for bulk carriers to reach the coast. Therefore, LFTS is proposed, which will be used as a relay base between coal-barging barges from land and bulk carriers offshore. However, LFTS and bulker are both large structures, and their motion are considered to affect each other through mooring ropes. Also, LFTS is affected by long-period wave drifting force. Therefore, grasping the motion characteristics of the LFTS system consisting of LFTS and bulker will be a very important issue for its realization. And then, in this study, the characteristics of the movement response of the LFTS system were also considered, which also considered the influence of the movement of the two floating bodies of LFTS and bulker on the movement response of each other through the mooring rope.