PROBLEM TO BE SOLVED: To provide a combine-harvester in which grain culms or weeds can be prevented from being caught or accumulated in a unit body.SOLUTION: A combine-harvester includes: a reaping device liftably provided at a front part of a machine body frame and a height detection device 100 provided at a grass dividing body 97 provided in a front part of the reaping device and detecting a reaping height of the reaping device relative to the ground. The height detection device 100 includes: a bracket 110 attached to the grass dividing body 97 a unit body 120 rotatably provided around a first rotating shaft 123 parallel to the bracket 110 in the vehicle width direction detection means for detecting a rotating position of the unit body 120 around the first rotating shaft 123 and a grounding body 140 rotatably provided around a second rotating shaft 123 parallel to the unit body 120 in the vehicle width direction and coming into contact with the ground. The bracket 110 is overlapped with at least a part of the unit body 120 when viewed in a vehicle width direction, and surrounds the unit body 120 when viewed in the vertical direction.
