Fuente: WIPO "processing tomato" The invention relates to the technical field of food processing, and particularly discloses tomato sauce seasoning sauce and a preparation method thereof. Under the synergistic sweetening effect and the synergistic freshening effect of all the components and the synergistic effect of the special flavor of the fermented product, the tomato sauce seasoning sauce disclosed by the invention has rich sour taste, meanwhile, the irritation caused by the sour taste can be well relieved, and meanwhile, richer taste levels are provided, so that the tomato sauce seasoning sauce has relatively strong seasoning capability and is suitable for being eaten by people. The method is suitable for cooking cooked meat with high requirements on seasoning level.