PROBLEM TO BE SOLVED: To provide a combine-harvester which can increase the number of reaping rows and can narrow a width thereof in a non-working time without troublesome operations.SOLUTION: In a combine-harvester, a reaping unit 2 comprises: a plurality of raising devices 11 which are corresponding to the number of reaping rows； a cutting device 12 which cuts the root sides of the standing grain culms； and a conveyance device 13 which conveys reaped grain culms to a rear part of a machine frame. The reaping unit is formed by dividing into one side reaping unit split body 2A and the other side reaping unit split body 2B at a middle position in a reaping width direction. The reaping unit is rotatably supported around a vertical rotation shaft X corresponding to the middle position, and is rotated from a normal service state where the one side reaping unit split body 2A is arrayed serially in the reaping width direction with respect to the other side reaping unit split body 2B, to a folded state where a front face of the one side reaping unit split body 2A is folded over while facing a front face of the other side reaping unit split body 2B .SELECTED DRAWING: Figure 5
