Silicone-containing acrylate pre-polymer (PDMS-g-HPMA) was prepared from hydroxylterminated poly (dimethysiloxane)(PDMS-OH), hydroxypropyl methacrylate (HPMA), 3-Isocyanatomethyl-3,5,5-trimerhylcyclohexy isocyanate (IPDI). Then, a series of silicone-containing modified acrylic resin polymers with different content of PDMS-g-HPMA were prepared with 2-Acetoxy-1-methoxypropane (PMA) as solvent and 2,2-azobis (2-methylpropionitrile) (AIBN) as initiator. Last, a series of waterborne acrylic resin dispersions were prepared by emulsification with N,N-dimethylethanolamine as neutralizer in the presence of water. The dispersions and coatings were characterized by FTIR, XPS, TGA, AFM and SEM. And the storage stability of the dispersions, the hardness, adhesion, water resistance and other properties of the coatings were test. The results showed that when PDMS-g-HPMA content was 4% (based on the total mass of polymerized monomers, the same below), the prepared dispersion had evenly distributed, right particle size (208.57nm) and better storage stability. The prepared coating had dense, transparent surface and exhibited good properties. The coating’s hardness was H, adhesion was grade 1 and water contact angle was 100.5?. Moreover, the prepared coating had excellent water and acid resistance.And the tensile strength of the coating was 15.6MPa and elongation at break reached 356%.The TGA analysis demonstrated that the temperature at which 10% mass loss of the coating reached 302.4℃.