PROBLEM TO BE SOLVED: To provide a granule spreader in which a spreading area of granules can be grasped and the scattered extent of the granules can be decided, in spreading work of the granules such as fertilizer.SOLUTION: A granule spreader includes: front wheels 4 and rear wheels 5 a tank 10 provided thereon and storing granules the granule spreader 1 with booms 14 for spreading the granules stored in the tank 10 to the field and a foam dropping device 53 provided in the vicinity of the granule spreader 1, and dropping foam serving as the mark of the spreading area in the field. The foam 67 serving as the mark of the spreading area is dropped in the field by the foam dropping device 53, and thereby the area where the granules are spread and the extent where the granules are scattered can easily be decided even when working alone. Then, a precise spreading area can be grasped, and thereby the work is carried out at the proper streak in the spreading work in the following process. Accordingly, even the problems in which the spreading areas are overlapped and a non-spreading area is caused may not occur.
