Hybrid sol-gel films were deposited on tinplate substrates from sol prepared by hydrolysis and condensation reaction of 3-methacryloxypropyltrimethoxysilane (KH570) and tetraethylorthosilicate (TEOS), followed by radical polymerization with ethylene glycol methacrylate phosphate (EGMP). The influence of the amount of EGMP on performance of the coating was investigated. Fourier transform infrared spectra (FTIR) was applied to characterize sols, scanning electron microscopy (SEM) was used to investigate the morphology of the hybrid coatings, , adhesion tests were used to examine the adhesion of coating the corrosion behavior was investigated using potentiodynamic scan (PDS) and neutral salt spray test (NSST). The results shows that organic-inorganic network has been formed, the surface of coating is dense and smooth, the adhesion degree of coating is 1, the best protection was achieved when the amount of KH570 four times to the molar number of EGMP in the coating.