The utility model provides a combined harvester which can constitute a rational machine body configuration structure with a simple transmission structure and smaller useless setting space. The combined harvester comprises a feeding device which conveys crops harvested by a harvesting part at the front part of a machine body backwards and a threshing device used for threshing of the crops conveyed by the feeding device and also comprises an assistant shaft (210) which passes through inside the threshing device and transmits power of an engine to one side of the threshing device which is opposite to the engine, another relaying shaft (256) different from the assistant shaft (210), a relaying transmission mechanism (258) which transmits power from a driving rotation body (255) installed on the assistant shaft (210) to a driven rotation body (257) installed on the relaying shaft (256), and a distribution transmission mechanism (259) which distributes and supplies power from the driven rotation body (257) to a threshing cylinder and the feeding device.
