The invention addresses the problem of providing a combine which is configured so that mechanical vibration of a forward reverse rotation switching case (121) and a forward reverse rotation operating device (132) is reduced and so that the connection structure between the forward reverse rotation switching case (121) and the forward reverse rotation operating device (132) is simplified. The combine is provided with a harvesting device (3) a threshing device (9) and a moving machine body (1) which is provided with a moving section (2) and an engine (7) and the combine is configured so that stalks of grain are supplied from the harvesting device (3) to the threshing device (9). The combine is also provided with: the forward reverse rotation switching case (121) which inputs the rotational driving force of the engine (7) into the harvesting device (3) and the forward reverse rotation operating device (132). The forward reverse rotation switching case (121) is disposed on one of left and right harvesting device supports (231) by which the harvesting device (3) is supported and the forward reverse rotation operating device (132) is disposed on the other of the left and right harvesting device supports (231).