PROBLEM TO BE SOLVED: To provide a combine which includes drive means for performing driving and driving stop of a reaping part and a traveling speed gear for performing traveling gear change of a traveling body, and can efficiently prevent reduction in work efficiency due to super slow traveling.SOLUTION: When advance traveling of a traveling body 3 at more than a predetermined speed is detected by advance traveling detection means 79 and low speed traveling detection means 79, a combine drives a reaping part 4 via drive means. When the advance traveling of the traveling body 3 at less than the predetermined speed is detected, the combine stops driving of the reaping part 4 via the drive means. When the advance traveling of the traveling body 3 is detected and driving stop of the reaping part 4 is detected by the advance traveling detection means 79 and drive stop detection means, the combine provides notification about that via notification means 84.
