The fluorosilicone copolymer modified starch for coating material was successfully synthesized using vinyltrimethoxysilane (VTMS), dodecafluoroheptyl methacrylate (12FMA) and starch through free-radical copolymerization to prepare the fluorosilicone copolymer and sol-gel process to condense with starch. FT-IR was employed to characterize the structure of the modified starch. When the molar ratio of hydroxyl groups of starch and fluorosilicone is 1∶1, and the grafting temperature is 60 ℃, the graft percent can reach the maximum of 32.3%. The surface properties of the modified starch films characterized by static contact angles (SCA), surface free energy and X-ray photoelectron spectroscopy (XPS) reveal that the modified starch behaves a lower wetability and surface free energy, but a improved thermal stability.