Fecha de publicación: 23/09/2022 Fuente: WIPO Wine The invention relates to a high-quality pit mud culture solution and a preparation method thereof, and belongs to the technical field of pit mud culture solutions. The technical problem that in the prior art, single cultured caproic acid bacteria are added into a pit, and the expected effect on quality improvement of Luzhou-flavor liquor is not achieved is solved. The high-quality pit mud culture solution is prepared from the following raw materials: 10wt% of aged pit mud, 5wt% of bran hydrolysate, 2wt% of monascus purpureus liquid, 8wt% of yellow water, 5wt% of ethanol and 70wt% of purified water. The pit mud culture solution can improve the quality of pit mud and improve the yield and quality of Luzhou-flavor liquor.