The utility model provides a combine -harvester, realizes being used for thresh operational structures the simplification for the connection of clutch of separation and reunion operation. With state and the state of inboard along organism horizontal extension to the outside in order to follow driving portion that rotates the installation of gomphosis freely around same core relatively, what possess that clutch pole (84) the swing of will threshing supports freely threshes with rotating counter roll (118) and will cutting and get cutting to take and rotating counter roll (119) of tube -shape that clutch pole (85) swing supported freely, inboard tip threshing with rotation counter roll (118) is formed with than cuts the inboard axial region (118a) that lengthens of taking the more inside pleurapophysis of the inboard tip that rotates counter roll (119) and going out, link thresh clutch pole (84) in inboard extended shaft portion (118a), the clutch is threshed with linkage operational unit (124) to driving portion outside position binding threshing with rotating counter roll (118), take the inboard position that rotates counter roll (119) and link to cut and get clutch pole (85) cutting, take the outside position that rotates counter roll (119) and link to cut and get the clutch with linkage operational unit (129) cutting.