Abstract:Objective: To study the result of removing impurity from water-extraction of Gutianquan-capsule with macro-reticular absorbing resin,chitosans clarification, water-extraction and alcohol-precipitation methods. Method: Coefficient of Unguent of macro-reticular absorbing resin,chitosans clarification method, water-extraction and alcohol-precipitation methods were compared, and qualitative assay of Ginsenoside Rg1 ,Re, and snide measurement of Ginsenoside Rg1,Ferulic acid, and stability experiment were made. Result: Coefficient of Unguent of water-extraction and alcohol-precipitation method was 17. 2% , Coefficient of Unguent of chitosans clarification method was 12.8% , and macro-reticular absorbing resin method was 3.1%. They could clarify liquor of water-extraction. Conclusion: Chitosans clarification method is suitable for process of Gutianquan-capsule.