Objective:To optimize the purification condition of active ingredients in Er-xian decotion with macroporous resin.Method: With the total flavonoids,total alkaloids and total saponins in Er-xian decotion as parameters,the D101,DM130,HPD100,HPD400 resins were inspected by dynamic method for the adsorption and desorption performance to screen the best resin and optimize the condition of absorption and desorption for the resin.Result: The D101 resin was suitable to purify the active ingredients in Er-xian decoc...