Formula of wild-like fresh Dendrobium officinale extract and preparation method thereof

The invention provides a formula of a wild-like fresh Dendrobium officinale extract and a preparation method thereof. The raw materials include, by weight, 45-55 parts of wild-like fresh Dendrobium officinale, 15-20 parts of Maca powder, 8-15 parts of American ginseng, 8-15 parts of Poria cocos, and 6-10 parts of xylooligosaccharide.The preparation method consists of: performing fresh extraction: steaming the wild-like fresh Dendrobium officinale green and performing sterilization, using a grinder to conduct superfine grinding, then conducting 200-mesh pumping filtration, and keeping the filtrate for standby use; conducting extraction and concentration: mixing Dendrobium officinale filter residue with Maca powder, American ginseng and Poria cocos according to the formula ratio and performing extraction, and subjecting the extracted liquid to filtering concentration for standby use; putting the Dendrobium officinale fresh extracted filtrate and the herb concentrated solution into a paste making pot, conducting