Hou, H., 2020. Research on forming and controlling technology of building foundation materials in coastal cities under marine climate. In: Bai, X. and Zhou, H. (eds.), Advances in Water Resources, Environmental Protection, and Sustainable Development. Journal of Coastal Research, Special Issue No. 115, pp. 21-23. Coconut Creek (Florida), ISSN 0749-0208.Reasonable construction methods should be selected, effective technical measures should be taken, and construction should be carried out strictly and conscientiously according to the requirements of construction acceptance specifications and operation specifications, so as to ensure the quality of construction projects. In the process of urban development, human activities have become the main cause of climate change. For housing construction projects, the foundation treatment of foundation is the most important item during construction, and it is also the key point of construction, which will significantly play a role in ensuring the benefits of the project. In the process of urbanization in coastal areas, land use has changed significantly, population has increased greatly, and urban industry has expanded rapidly. In the architectural design of coastal areas, the design difficulty and engineering cost are much higher than those of ordinary areas, because the treatment of building foundation in coastal areas is becoming more and more important. This paper discusses the forming and control technology of building foundation materials in coastal cities under the marine climate.