PROBLEM TO BE SOLVED: To provide a combine-harvester 1 capable of arranging an operation tool properly while considering the operation frequency of the operation tool, with a view to improving mainly the operability of an operation tool (e.g., an operation lever, a switch or a setter) to be disposed in a maneuvering part A and reducing fatigue of an operator to improve the working efficiency.SOLUTION: When an operation tool is to be arranged in operation boxes 27 and 29 raised over one side from the front of a driver seat 31, the front side of the operation boxes is equipped with: an operation tool 38 for turning a machine 3 or for raising or lowering a mowing part B； a first operation tool group (44, 46, 52, 54 and 61) having a high operation frequency during a cutting threshing operation； operation tools 62 and 63 for performing a running shift of the machine 3； and a second operation tool group (67, 68, 69 and 70) having a low operation frequency during the cutting threshing operation.SELECTED DRAWING: Figure 4【課題】操縦部Ａに設ける操作具（操作レバー、スイッチ、設定器）の操作性を向上させて、オペレータの疲労を軽減して作業能率を向上させることを主眼として、そこに操作具の操作頻度を考慮して操作具を適正に配置することができる、コンバイン１を提供する。【解決手段】操作具を運転席３１の前方から一側方に亘って立設する操作ボックス２７、２９に配設するに当たり、操作ボックスの前部側には、機体３の旋回や刈取部Ｂの昇降を行う操作具３８を設ける一方、操作ボックスの側部側には、刈取り脱穀作業中の操作頻度が高い第１の操作具群（４４，４６，５２，５４，６１）と、機体３の走行変速を行う操作具６２、６３と、刈取り脱穀作業中の操作頻度が低い第２操作具群（６７，６８，６９，７０）を前後方向として、その順に配置する。【選択図】図４
