PROBLEM TO BE SOLVED: To provide a combine which operates a reaping clutch and a threshing clutch with a single turning operation body and in which a reaping-side linkage mechanism and a threshing-side linkage mechanism hardly interfere with each other, and which can be efficiently arranged, and can stably operate the reaping clutch and the threshing clutch.SOLUTION: A transmission device of a combine comprises: a reaping clutch 48 which connects and disconnects power transmission to a pre-processing part 4 a threshing clutch 38 which connects and disconnects power transmission to a thresher 10 a turning operation body 52 which is driven by an actuator 53 so as to be turnable a reaping-side linkage mechanism 56 which makes the turning operation body 52 and the reaping clutch 48 mechanically communicate with each other and a threshing-side linkage mechanism 54 which makes the turning operation body 52 and the threshing clutch 38 mechanically communicate with each other. The reaping-side linkage mechanism 56 is arranged at one side, and the threshing-side linkage mechanism 54 is arranged at the other side while the turning operation body 52 is sandwiched between both the sides.
