Probiotics fermented functional food capable of improving sleep and preparation method thereof

The invention provides a probiotics fermented functional food capable of improving sleep and a preparation method thereof. A mixture of soybeans, poria cocos and lotus seeds is used as a solid-state fermentation substrate. A plurality of strains such as lactobacillus plantarum, bifidobacterium animalis, lactobacillus paracasei, bifidobacterium adolescentis, bacillus coagulans, bacillus subtilis, lactobacillus reuteri, bifidobacterium longum and pediococcus acidilactici are adopted for mixed bacterium solid-state fermentation, and then vacuum freeze-drying is performed to obtain the product. Not only can the content of active ingredients be increased, but also the absorption of the active ingredients in a human body can be promoted, and a better health-care effect on an organism is achieved. The functional food is mainly used for improving symptoms such as difficulty in falling asleep, reduction of sleep quality, reduction of sleep time and the like. 本发明提供一种改善睡眠的益生菌发酵功能食品及其制备方法，是以大豆、茯苓、莲子的混合物作为固态发酵基质，采用植物乳杆菌、动