Vacuum freeze-drying vitamin E nanoemulsion powder reconstituted emulsion（O/W） was prepared by combining vacuum freeze-drying and high pressure homogenization technology， with the optimum technological conditions optimized by single factor experiment and response surface methodology. Further， the physical and chemical properties of it were studied by scanning electron microscopy， rheometer and infrared spectroscopy， etc. And the research results showed that the optimum technological conditions were： The mass concentration of SPI and sunflower seeds oil is respectively 15 mg/mL and 45 mg/mL， while the homogenization pressure and times is 100 MPa and four times. The average particle size was 232.66 nm and the embedding rate was 90.82%. And the vacuum freeze-drying powder reconstituted emulsion has good stability， and the scanning electron microscopy results showed it had a compact structure and a smooth surface. The rheometer scanning results showed that the freeze-drying powder reconstituted emulsion showed a typical rheological behavior of shear thinning， with Newtonian fluid characteristics. The results of infrared spectroscopy showed that the α-helix and β-turn structure of the freeze-dried powder increased， while the β-sheet and random coil structure decreased. Inconclusion， the vacuum freeze-drying vitamin E nanoemulsion powder reconstituted emulsion improves the vitamin E absorption ratio and the stability of the emulsion system.