Freezing and drying preparation method and application of pomelo fruits

The invention discloses a freezing and drying preparation method and application of pomelo fruits. The preparation method comprises the step that pretreated pomelo fruits are frozen and dried, wherein the pomelo fruits which need to be molded are molded when being dried into semi-dried products, and continuously frozen and dried till the water content is lower than 8%. By adoption of the preparation method, the defects that a traditional processing method is long in production period and high in cost are overcome, the production efficiency is improved, the production cost is lowered, meanwhile, losses of effective components of a medical material are reduced, dried products subjected to freezing and drying are uniform in appearance color, attractive, easy to cut and prepare and convenient to use, and the quality stability of freezing and drying is improved; and the pomelo fruits prepared through the preparation method can be intact, or be cut in halves, or cut and prepared into slices or blocks or shreds, or