The invention relates to an automated control system of brewing of a soy sauce. The automated control system comprises a main controller, a material steaming machine, a koji making machine, a koji feeding assembly, a fermenting device, an oil spraying device, a material transporting device and one or more raw material feeding assemblies, wherein the material steaming machine, the koji making machine, the koji feeding assembly, the fermenting device, the oil spraying device, the material transporting device and the raw material feeding assemblies are separately connected with the main controller; the raw material feeding assemblies, the material steaming machine, the koji making machine and the fermenting device are sequentially connected through the material transporting device; materialsare transported through the material transporting device; and the fermenting device is also connected with the oil spraying device. Through the adoption of the automated control system disclosed by the invention, the automation of the brewing of the soy sauce can be realized; the technological process of the brewing of the soy sauce is set in the main controller; and each link of the brewing of the soy sauce is controlled by the main controller, so that the standardization of the brewing of the soy sauce is guaranteed, the automation of the brewing of the soy sauce is realized, and human resources and material resources are saved.