The present invention provides a cutter for corn threshing. The cutter is mounted on a rotary food processor with a driving device, which comprises a cylinder with one open end a cavity disposed in the cylinder to accommodate threshed corn cobs a cutting member disposed at the middle of the open end of the cavity and a locking portion disposed at the other end of the cylinder and connected to the driving device of the rotary food processor in a detachable manner. The present invention further discloses a rotary food processor with this cutter. The cutter for corn threshing and the rotary food processor both have the advantages of small volume, simple operation and high practicability.
