The application of high-performance composite materials in the field of sails has significantly enhanced the strength, durability, and lightweight properties of sails. By combining high-performance fibers such as carbon fiber, ultra-high molecular weight polyethylene fiber, and aramid with resin, sails have become lighter, easier to handle, and capable of withstanding greater wind and wave impacts, thereby extending their service life. The UV resistance and corrosion resistance of composite materials also ensure that sails perform more reliably in harsh marine environments, reducing the frequency of maintenance and replacement. More importantly, these composite materials exhibit low elongation during use, ensuring that the shape and performance of the sails remain consistent under various weather conditions, providing stable sailing speed and precise handling. Through these characteristics, high-performance composite materials offer modern sailboats greater efficiency, enhanced safety, and longer operational life cycles.