Combine harvester

Provided is a combine harvester which, enables a threshing apparatus to work, when a threshing work is manually supplied, in an running status which is fit for the threshing work manually operated, so that the work can be excellent operated and endurance can be increased. The combine harvester includes: a restrain component, a detection sensor, a threshing controller, and a support component. The restrain component is possessed by a manual grain-straw supply portion and is freely switched between restrain-relieving status which allows manual grain-straw supply and restrain status which restrains grain-straw supply. The detection sensor detects whether the restrain component is at the restrain status or at the restrain-relieving status. The threshing controller controls drive speed of the threshing apparatus, so that the threshing apparatus is made to be at harvesting work operation status when the detection sensor detects restrain status, and the threshing apparatus is at manual supply threshing operation status when the detection sensor detects a restrain-relieving status. The support component supports the detection sensor. The restrain component swings around a transverse axle core and is freely supported on the support component, and switches to the restrain status or the restrain-relieving status by swinging around the transverse axle core.