A stirring knife assembly at least comprises a knife bracket and a stirring shaft; the knife bracket is of a framework structure and is fixedly provided with at least one blade; the stirring shaft is fixedly connected with the knife bracket. The lower part of the knife bracket is provided with a first blade, and the upper part of the knife bracket can be provided with a second blade or can be not provided with the blade; the stirring shaft is not provided with a blade or is provided with at least one blade; the mode of blade arrangement on the knife bracket can be combined randomly with the mod of blade arrangement on the stirring shaft. Because the blade is connected with the stirring shaft through a non-injection molding mode, the defects brought by the injection molding process are avoided, the shape and the number of the blades have no limitation, and the blade arranged positions are relatively flexible; and moreover, the blade bracket adopts the framework structure, the braking structure is simplified, at the same time, a deep hole structure, which is matched with a positioning shaft of a stirrer, of a stirring shaft of a traditional stirring knife assembly is avoided, moreover, enough space is left for food to pass through, food is avoided from remaining in the deep hole structure, no cleaning dead angle exist, cleaning becomes easy, and the practicability is high.