Abstract:Objective: To create Atractylode macrocephala inspissation decoction pieces.The effect of ultrasonic wave on extraction of the active components in A.macrocephala was studied in a water solution.Method: The factors including the ratio of material to liquid,ultrasonic power,ultrasonic time,soaking time,particle size etc,were studied.The best extraction method was found through the response surface method.Result: The best extraction method was found as follows: the granularity of material 0.1 mm,the repetition times of ultrasonic process 3 times,the soaking time before the ultrasonic process 30 min,the ratio of liquid to material 10∶1,the soaking time after the ultrasonic process 2.6 h,the time of the ultrasonic wave 15.5 min,the power of the ultrasonic wave 531 W,the rate of reservation of active components 88.5%,the rate of inspissation 1.6.Conclusion: The ultrasonic wave can used in the extraction of the active components in A.macrocephala and a model equation that can be used to predict the experiment was get through the response surface method.