Prinsepia utilis Royle is a medicinal and edible perennial deciduous shrub.The shoot of P. utilis is its leaf and tender stem.In order to improve the skin care activities of the control sample (P. utilis oil content 0.1%) in this study.The skin care activities of P. utilis was preliminarily studied by means of natural medicinal chemistry and skin care activity test.The results showed that the optimal deodorization process was as follows:the ratio of material to liquid was 1∶10 g/mL,the time was 15 min,and the temperature was 70 °C.The antioxidant and tyrosinase inhibitory activities of the pure dew extract of P. utilis before and after deodorization and after adding some active compounds contained in P. utilis increased,and were higher than those of the control samples.This study preliminarily verified the potential skin care activity of P. utilis pure dew,and laid a preliminary application foundation for the utilization,protection and inheritance of P. utilis resources and related traditional knowledge.