The present invention discloses a
threshing device with a regulation function. The
threshing device comprises a rack and a first
threshing chamber, wherein the first threshing chamber which is inclined forward upward is arranged on the rack; a first feed port is formed above the front end of the first threshing chamber, and a first
discharge port is formed in the rear end of the first threshing chamber; the rack is provided with a second threshing chamber, the second threshing chamber is positioned under the first threshing chamber, the second threshing chamber which is inclined forward downward is arranged on the rack, the high end of the second threshing chamber is a second feed port, and the second feed port is connected to the first feed port via the corn threshing chamber; and a second
discharge port is formed in the lower end of the second threshing chamber, wherein a splash-proof device is arranged at the second
discharge port. The threshing device disclosed by the present invention has the advantages that the corn removal rate is improved; the corn kernels are prevented from being destroyed in the threshing process; and the service life of the drive belt is prolonged while the safety performance is improved. The threshing device has the beneficial effects of low modification cost, high threshing velocity and the like.