The utility model relates to an agricultural hob weeding vehicle. The device comprises a storage box body, an upper sawtooth grass baffle, a lower sawtooth cutting plate, a hob wheel fixing ring, a front wheel, a rear wheel, a wheel extension shaft, a transmission belt and a hob wheel, an upper sawtooth grass baffle is arranged behind the storage box body; a lower sawtooth cutting plate is arranged at the rear end of the bottom of the storage box body; and the hob wheel fixing ring is welded to the rear end of the storage box body, the hob wheel is fixed to the rear end of the storage box bodythrough the hob wheel fixing ring, weeding and cleaning are integrated, large-area rapid weeding can be achieved, and the device is suitable for application and popularization.