Mountain ginseng active freeze-dried powder as well as preparation method and application thereof

The invention discloses wild ginseng active freeze-dried powder as well as a preparation method and application thereof, and the preparation method comprises the following steps: selecting fresh wild ginseng, cutting into sections, and pre-freezing at-20 DEG C for 2 hours; performing vacuum freeze drying on the mountain ginseng sections for 3 hours, taking out the mountain ginseng sections, and detecting the moisture content which is 35-45%; then putting the mountain ginseng sections into a sealed tank, adding the mountain ginseng sections into a phellinus igniarius cold leaching solution or a lucid ganoderma cold leaching solution, soaking for 48 hours, and then taking out the mountain ginseng sections; after moisture on the surfaces of the mountain ginseng sections is dried, freezing at-20 DEG C for 1 hour; and finally, carrying out secondary vacuum freeze-drying on the mountain ginseng sections for 4 hours until the water content is below 7%, and freezing and powdering to obtain the mountain ginseng active