The utility model provides a combine harvester, which guarantees straws hard to be discharged to an uncut area adjacent to a cutting path. The combine harvester is structurally characterized in that a threshing device (12) and a kernel collection portion (13) are disposed on the left and the right of a travelling body respectively, a straw chopping device (4) for chopping straws from the threshing device (12) is disposed in the rear of the threshing device (12), a discharge outlet (40b) of the straw chopping device (4) is elongated at the rear end of the traveling body along the width direction, a guide slanting portion (50) for slantingly guiding the straws chopped by the straw chopping device (4) to the rear of the traveling body approximately cross the whole width of the discharge outlet (40b) and is disposed below the same, and a portion on the side, forming the kernel collection (13), of the guide slanting portion (50) is lower than a portion on the side with the threshing device (12).