Recently, a large-scale seawater desalination project in California, USA, adopted a new type of geomembrane material and laying technology. This geomembrane has higher impermeability and strength, and can effectively resist long-term erosion by seawater. During the laying process, the construction team used advanced automation equipment, which not only improved the laying efficiency but also ensured the quality and accuracy of the geomembrane laying. The application of this innovative technology provides important guarantees for the long-term stable operation of the seawater desalination project, and also provides valuable experience and reference for other similar water conservancy projects.