Method for preparing biological enzyme drink

The invention provides a method for preparing biological enzyme drink. The method for preparing the biological enzyme drink comprises the following steps: cooking an edible plant raw material, and sequentially adding water, sealing and fermenting after cooking is finished, wherein the temperature of water vapour is 70-80 DEG C during cooking, the temperature during fermentation is 40-42 DEG C, and the fermentation time is 30-35 days. The edible plant raw material is cooked in the water vapour at the temperature of 70-80 DEG C, a food material is softened, generation of biological enzyme in subsequent steps can be facilitated, and the food material is sterilized; water adding, sealing and fermentation at the temperature of 40-42 DEG C for 30-40 days are sequentially carried out on the cooked food material, so that drink rich in biological enzymes is obtained; and during fermentation, no strain or auxiliary material is added, and the edible plant raw material is completely self fermented.