Preparation method of folium ginkgo beverage

The invention discloses a preparation method of a folium ginkgo beverage and belongs to the technical field of a natural plant healthcare beverage. The preparation method comprises the following steps: selecting and cleaning raw materials, shredding, ventilating and drying in the shade, preparing materials, extracting, refrigerating, filtering and dosing. According to the invention, the extracting temperature in the extracting step is low so that the beneficial components can be protected from being undamaged to the greatest extent; a high concentration difference between the beneficial components and water is generated by the folds of added water, so that the permeation and dissolution of the beneficial components are benefited; the extract liquid is placed and refrigerated at low temperature, so that the solubility of the unprofitable components, such as, plant protein and colloid matters, contained in the folium ginkgo can be reduced with the decrease of the temperature and small grains can be separated ou