Abstract: Coastal regions as well as its ecosystem service now are under threaten by the combination effects of improper human activities and serious natural disasters. Restoring the damaged areas together with its services is both an opportunity and a challenge for coastal cities. Here, we summarized the representative coastal eco-realignment and restoration technologies including shorelines planting, sediment amendment and beach nourishment, hydrological control, marsh transplantation, and oyster reef construction. Moreover, we prospected the trends of coastal eco-realignment and restoration technologies, and suggested that studies should focuses on developing technologies that combining both human intervention and natural succession, in order to adapt to the harsh conditions at the coast. These technologies should also help to improve the function and structure of coastal ecosystems and to further form the landscape-scale composite ecosystems, which in turn improved the coastal environment and provided citizens with a beautiful habitat that could touch and explore the ocean.