In order to improve the adhesion, stability and mechanical properties of the films, the epoxy styrene acrylic resin was synthesized by free radical solution polymerization ,and then blended with an inorganic Titanium sol to prepare a novel organic-inorganic hybrid films . The main factors influencing the resin synthesis were studied. The composition and structure of the resin and the organic-inorganic hybrid films were characterized by FT-IR, GPC, DSC, TG. It was found that the epoxy styrene acrylic resin with a number-average molecular weight of 6923, a weight-average molecular weight of 17213 and the polydispersity of 2.48 was obtained with 14% (relative to total monomer weight) benzoyl peroxide(BPO) as initiator, 1.5%(relative to total monomer weight) N - methylol acrylamide (NMA) as crosslinking agent and the hard and soft Monomer ratio of 1:1 at a reaction temperature of 90℃. In summary , the organic-inorganic hybrid films has better comprehensive performance compared with the epoxy styrene acrylic resin films , the films features good resistance to water ,saline ,and acid ,adhesion strength of 1 grade and pencil hardness of 5H .