Fecha de publicación: 06/09/2022 Fuente: Wipo Tobacco Agriculture The invention belongs to the technical field of tobacco leaf fermentation, and particularly relates to a green and natural compound fermentation medium for promoting cigar tobacco leaf fermentation and a fermentation method thereof. Comprising the following raw materials: edible high-degree white spirit, syrup, table vinegar, edible baking soda and an edible spice plant extracting solution. The preparation method comprises the following steps: preparing the following raw materials: edible high-degree white spirit, syrup, table vinegar, edible baking soda and an edible spice plant extracting solution; preparing a fermentation medium; by adding the green and natural compound fermentation medium, the raw smell, the fishy smell and the offensive smell of the tobacco leaves can be eliminated, so that the characteristic aroma of the cigar is fully manifested, the taste tends to be mellow, the irritation, the roughness, the spicy taste, the bitter taste and the strength of the smoke are correspondingly relieved, the taste becomes mellow and soft, and the aftertaste is more comfortable.