The invention discloses a smashing cutter for food processing. The smashing cutter comprises a first rotation shaft and a second rotation shaft, a cutter cover is mounted at the top of the first rotation shaft, and upper cutter bodies are mounted on the two sides of the cutter cover; a lower cutter body is arranged below the upper cutter bodies, and cutter tooth groups are mounted on the two sidesof the lower cutter body; a cutter ring is mounted on the second rotation shaft, and curved blades are mounted on the outer side of the cutter ring. The smashing cutter is novel in structure and convenient to use and operate; by adjusting the length of the smashing cutter, processing requirements of different food can be met; the length can be adjusted by an air cylinder device or limited throughbolts and bolt holes, and thus the function of adjusting the length of the cutter can be achieved; the smashing cutter has high practicability, the use functionality of the smashing cutter for food processing is greatly improved, the use effect and use benefits are guaranteed, and the smashing cutter is suitable for being widely popularized.