The invention discloses a preparation technology of dried mulberry fruit/mulberry powder, and a product and a derivative of the dried mulberry fruit/mulberry powder. The processing method of the dried mulberry fruit/mulberry powder adopts a vacuum freeze drying technology, so that the fresh taste, the nutritional components, the color and the fragrance of mulberries are successfully retained, and the prepared dried mulberry fruit/mulberry powder can be either directly eaten or used as a raw material for food processing. The dried mulberry fruit can be further prepared into scented tea, and the prepared scented tea tastes sour and sweet, and has mellow flavor and flower fragrance; the dried mulberry powder is further prepared into cookies; the cookies taste crispy, has a special flavor, is low in fact content and sugar content and rich in nutrition, and is favorable for the health of people.