The invention relates to the field of 
cosmetics, and discloses an application of camellia oleosa seed oil. The application is represented in preventing, diluting or eliminating 
striae gravidarum, moisturizing 
skin, improving coarse pores, eliminating freckles, removing 
acne, removing wrinkles, removing dark eye circles and 
eyelid pouches, implementing make-up and cleansing, preventing 
sunlight andpreventing 
radiation. The camellia oleosa seed oil is prepared by a preparation process comprising the following steps: conducting primary pressing on camellia oleosa seeds at 35-45 DEG C, so that crude camellia oleosa seed oil is obtained; and mixing the crude camellia oleosa seed oil with lucid 
ganoderma, rhizoma curcumae longae and 
chitosan, and conducting secondary pressing at 25-70 DEG C. The camellia oleosa seed oil prepared by the method provided by the invention, in comparison with camellia oleosa seed oil prepared by conventional methods, is capable of achieving more effective functions of preventing, diluting or eliminating 
striae gravidarum, moisturizing 
skin, improving coarse pores, eliminating freckles, removing 
acne, removing wrinkles, removing dark eye circles and 
eyelid pouches, preventing 
sunlight and preventing 
radiation; the camellia oleosa seed oil, when used for implementing make-up, can enhance fitness of 
cosmetics to 
skin; and the camellia oleosa seed oil, whenused for implementing cleansing, can be used for cleaning the skin thoroughly.