Abstract: In this study,the variation of active component and in vitro antioxidant activity of Salvia miltiorrhiza was compared under different sweating environment.The results showed that,the active component content of S.miltiorrhiza, includingsalvianolic acid B and tanshinone,as well as antioxidant activity were higher in the indoor environment and the open light surround than in the shade environment.In addition, S.miltiorrhiza in the open and light surround sweating had the highest content of salvianolic acid B and tanshinone and in vitro antioxidant activity.In brief,the open and light environment was proved to be the better condition for the sweat of S.miltiorrhiza.The purpose of this study was to provide the basis for choosing environment of S.miltiorrhiza sweating,and to provide the reference for the treatment of Radix Salviaemiltiorrhizae.

Key words: Salvia miltiorrhiza, sweating, raw material processing, content determination, antioxidant capacity