PROBLEM TO BE SOLVED: To provide a combine capable of accurately detecting a discharge amount of grains.SOLUTION: The combine includes: a threshing device threshing reaped grain culms a storage part storing grains threshed in the threshing device and a screw conveyor discharging the grains stored in the storage part. The combine includes: a clock part clocking a rotation time of the screw conveyor rotation speed detection means detecting a rotation speed of the screw conveyor a discharge amount calculation part calculating a discharge amount of the grains from the storage part on the basis of the rotation speed detected by the rotation speed detection means and the rotation time clocked by the clock part and a discharge amount display part displaying the discharge amount calculated in the discharge amount calculation part.