The present article introduces the concept of ecological assessment of reclamation projects. In addition, considering the impact of reclamation projects on marine ecosystems, we built a framework that takes into account structure, function, and ecosystem services for the assessment of the impact of reclamation projects on marine ecology. Moreover, this study explored different technical methods for ecological assessment of reclamation projects, with an emphasis on those that evaluate the impacts of reclamation on the structure of marine ecosystems. The present research provides technical support for the recognition and diagnosis of marine ecology problems that are the result of reclamation projects, introduces a guideline for the development of ecological restoration projects, assists in protecting coastal wetland ecosystems, promotes the scientific and reasonable management and control of reclamation, and helps maintaining the regional marine ecological security pattern.