Abstract: Cationic fluorinated polyurethane-acrylate hybrid dispersions were prepared by the copolymerization of 2,2,3,4,4,4-hexafluorobutyl methacrylate, butyl acrylate and styrene in crosslinked polyurethane acetone solution via phase inversion polymerization in order to obtain polyurethane-acrylate films with low surface free energy. The structure, surface properties, particle size and morphology of FPUA water dispersions were investigated by FT-IR, TEM, submicron particle size analyzer and contact angle measurements respectively. The results showed that the introduction of fluorinated monomer could decrease the surface free energy by more than 50%, and the FPUA films cured at ambient conditions had surface free energy (lower than 0.0172 J•m^-2).At the same time, the dispersion particle was spherical with particle diameter is about 220 nm.