Hydrofoil is the direct component to generate thrust for underwater glider. It is significant to improve propulsion efficiency of hydrofoil. This study optimizes the shape of a hydrofoil using Free-Form Deformation (FFD) parametric approach and Surrogate-based Optimization (SBO) algorithm. https://www.roneverhart.com/Open-Box-LG-UP8770-86-in-4K-UHD-4K-UHD-120Hz-Smart-TV-86UP8770PUA-2021/