Abstract: In order to improve the cleaning effect of the dried jujube during cleaning process, the jujube cleaning machine was designed and manufactured by using ultrasonic as power. On the basis of pretests, the parameters scope of the cleaning machine was determined. Through orthogonal test of ultrasonic cleaning to dried jujube, the range analysis and square analysis were carried out on the test data. Under the experiment condition of power 550 w, temperature 60℃ and cleaning time 4 min, the results showed the best cleaning effect with cleaning rate of above 96.2%, breakage rate of 0.8%. The experiment results can provide a scientific and technical basis for jujube dried enterprises.