Preparation method of tricholoma matsutake compound fermentation functional beverage

The invention discloses a preparation method of a tricholoma matsutake compound fermentation functional beverage. The red tricholoma matsutake fruit body is used as a main material, and the spiny acid pear fruit is used as an auxiliary material. The tricholoma matsutake sporocarp is cut up and ground into powder, and tricholoma matsutake sporocarp powder is obtained; cleaning and juicing the auxiliary material, namely the spiny acid pear fruit, so as to obtain spiny acid pear juice; uniformly mixing the roxburgh rose juice with an LM culture medium to obtain a mixed solution; adding the tricholoma matsutake sporocarp powder into the mixed solution, uniformly mixing, sterilizing, and cooling to room temperature for later use after sterilizing; inoculating a yeast liquid and a monascus purpureus liquid into the mixed liquid obtained after sterilization, and fermenting to obtain a fermentation liquid; inoculating lactobacillus plantarum liquid into the fermentation liquid for fermentation, extracting polysacchar