The effects of oryzanol levels (0%, 1% and 2%) and storage temperature (4, 25 and 37 ℃) on the physicochemical stability of the nanoemulsions were investigated. The results showed that oryzanol level had no significant effect on the physical stability of the nanoemulsions stored at different temperatures. There was no correlation between the oryzanol level and the chemical stability of the nanoemulsions stored at 4 and 25 ℃. The peroxide and anisidine values of the nanoemulsion that stored at 37 ℃ were negatively correlated with the oryzanol levels. According to kinetics analysis, the first-order kinetic model could better reflect the change trend of lipid oxidation in the nanoemulsions.