Sleep-promoting pitaya fermented beverage and preparation method thereof

The invention discloses a hylocereus undulatus fermented beverage capable of helping sleep. The beverage is mainly prepared from the following raw materials: a hylocereus undulatus fermented stock solution, a plant extract, a new food raw material, dietary fibers and water. The preparation method comprises the following steps: weighing a certain amount of pitaya fermentation stock solution, plant extract, new food raw materials, dietary fibers and water, and homogenizing the materials in a blending tank until the materials are completely dissolved and are uniform in texture; homogenizing until the materials are completely dissolved and uniform in texture, and then pumping into automatic canning equipment for canning; and after canning, sterilizing to obtain the pitaya fermented beverage capable of helping sleep. The pitaya fermentation stock solution directly acts on neurotransmitters for improving sleep, and various sleep problems of difficulty in falling asleep, light sleep, incapability of waking up, incap