This research proposal outlines the design and optimization of an innovative floating perovskite photovoltaic desalination system. The system leverages the high efficiency and low-cost potential of perovskite solar cells, integrated onto a floating platform, to simultaneously generate renewable energy and desalinate seawater. The research will focus on key areas including material selection, structural integrity, energy conversion efficiency, and desalination effectiveness. Through a combination of computational modeling and experimental validation, the project aims to optimize system parameters to maximize both energy output and freshwater production. The proposed research seeks to advance the field of renewable energy and desalination technology, offering a scalable solution with significant environmental and socioeconomic benefits.