PROBLEM TO BE SOLVED: To improve rigidity of supporting an exhaust gas purification device.SOLUTION: A combine-harvester according to one embodiment includes: an engine on a machine body frame; an exhaust gas purification device for purifying exhaust gas of the engine, on the machine body frame; a thresher for threshing grain culm, on one side of the left/right of an upper part of the machine body frame and at a rear side of the engine; and a grain tank for storing the threshed grain culm on the other side of the left/right of the upper part of the machine body frame. The combine-harvester further includes: a urea SCR catalyst that constitutes a part of the exhaust gas purification device and that executes purification processing by reducing the exhaust gas of the engine using ammonia generated from urea water, at the rearward of the engine on the machine body frame between the thresher and the grain tank; and a support member that fixes one lateral face upper part facing at least the machine body outside, ou
