PURPOSE: To provide a device for a combine harvester facilitating the adjustment of a reaping height ad excellent in workability and safety by canceling a stopper for setting the downward movement limit of a reaping section in interlock with the vertical movement of travel devices, when the travel devices are downward moved, and for changing the stopper into an action state, when the travel devices are upward moved.

CONSTITUTION: The device of the combine harvester equipped with a vehicle height-changing device for vertically moving right and left travel devices 1, 1 disposed on both the sides of the frame 2 on the basis of the frame to change the height of the frame is characterized by canceling a stopper 3 for setting the downward movement limit of a reaping section B in interlock with the vertical movement of the travel devices 1, 1 when the devices 1 are downward moved, and changing the stopper 3 into an action state, when the devices 1 are downward moved.