The invention discloses a method for preparing dried muskmelons by ultrasonic vibration, and in particular to a method for preparing dried muskmelons by a certain method. The method is as below: first, the muskmelons are cut into strips, and immersed in salt water with a specific concentration; the muskmelon strips are dried by an oven to remove a part of water; and then the dried muskmelon stripsare put into soaking liquid containing certain specific substances and soaked to enhance the fragility of the dried muskmelons, hinder the loss of the flavor of the dried muskmelons, and improve flavor, taste and stability of the dried muskmelons; therefore, the method can obtain crispy and delicious dried muskmelons with good taste, and the dried muskmelons obtained by the invention have good stability. The preparation method is simple and controllable, and has strong social effect and economic effects.