To prevent deflection of an operation frame having an operation clutch lever mounted thereto, when the operation clutch lever is turned 'ON'.

The device for mounting the clutch lever of combine is so constituted that the rotating bearing point (A) part of a work clutch lever 7 which is mounted to the operation frame 3 of the upper part of a travelling undercarriage 2 or a vicinity part (L-shaped plate connected to (A)) is connected to a travelling mission case 9 with a rear connecting lever 10, while a rotating bearing point (B) of an auxiliary transmission lever 8 mounted to the operation frame 3 or a vicinity part (rectangular plate connected to (B)) is connected to the travelling mission case 9 with a front connecting lever 11.