This paper evaluated the exchange capacity of suspended sediments of porous/hollow breakwater constructions, which has been applied in the coastline of the Mekong Delta. Three construction structures were evaluated, including porous structure (Pile-rock breakwater), two-sided perforated hollow breakwater (TC1, DRT/VTC), and Curtain breakwater (CWB45). In this research, the most recent CFD of FLOW3D technology is used to provide a detail approach in analyzing the interaction between waves and structures, providing vertical profile wave-induced current in front and behind structures. The physical modeling in wave flume experiments was employed to assess the impact of structure on sediment transport. The results show that the hollow porous structures, hollow breakwater, open-legged inclined walls have good environmental exchange capacity. It was also found that the perforated hollow breakwater (TC1 & DTR/VTC) has a distinct advantage in accumulating fine sand and mud behind the construction. Therefore, applying these types of hollow structures for wave reduction and mud exchange is recommended to restore alluvium behind the breakwaters, creating favourable conditions for mangrove forest restoration, biodiversity enhancement, and improving coastal ecosystems