The work aims to study the influence of temperature, time, food simulant, material structure and additive molecule on the migration of three kinds of ultraviolet absorbers in polypropylene. A high-performance liquid chromatography was developed for three kinds of ultraviolet absorbers (UV-P, UV-531 and UV-327). Additionally, the migration of additive to five kinds of food simulants at 20, 40 and 70 ℃ was studied. The additive showed good linearity in the range of 0.1～20 μg/mL and the limits of detection ranged from 0.03～0.05 μg/mL. When the standard substance added was at concentration of 20, 80 and 200 μg/g, the recovery rate was 81.6%～99.8% with relative standard deviations ranging from 2.3% to 7.7%. No additives were detected in the solution with 10% (volume fraction) ethanol and 3% (mass fraction) acetic acid. Only UV-P was detected in the 20% ethanol solution(volume fraction). All three ultraviolet absorbers were detected in the 50% ethanol solution(volume fraction) and isooctane. With increased temperature and prolonged time, the migration amount of ultraviolet absorbers gradually increases till balanced. The ultraviolet absorbers are inclined to migrate to isooctane and ethanol solution. In the ethanol solution, the kinds and amount of the migrated additives increase with the increase of the ethanol content. The migration amount of ultraviolet absorber decreases with the increase of the crystallinity of polypropylene materials. As for the additive with higher molecular weight and more complicated structure, it is more difficult to migrate.