The invention discloses a method for preparing an ultrasonic extracted Chinese medicinal preparation for treating qi deficiency, which belongs to the technical field of traditional Chinese medicaments. The method comprises the following steps of: crushing
ginseng into coarse
powder, putting the coarse
powder into an ultrasonic extractor, adding 30 percent
ethanol in an amount which is 3 times weight of the coarse
powder, starting ultrasonic equipment at a temperature of between 20 and 25 DEG C, performing ultrasonic treatment for 40 minutes, filtering, reclaiming the
ethanol, concentrating the filtrate to original amount, adding the
ethanol in an amount which is 3 times weight of the concentrate, stirring, standing, taking the supernate, reclaiming the ethanol, and concentrating the supernate to 100ml; and adding
sodium benzoate, stirring the solution uniformly, regulating the
ethanol content to be 20 to 30 percent, standing at a temperature of between 5 and 10 DEG C, taking the supernate, filtering the supernate, adding water till 1,000ml, standing for 7 days at a temperature of between 5 and 10 DEG C, taking the supernate, filtering the supernate, and packing the supernate to obtain the preparation. By adopting the advanced ultrasonic extraction technology, the effective ingredients based on
ginsenoside in the preparation are obviously improved, the quality and the
curative effect of the medicament are improved, the clinical effect of the preparation is improved, the yield and the purity of the product are improved, the cost is saved, and the method is suitable for large-scale production operation.