The invention discloses a harvester, including a chassis assembly and travelling mechanisms on two sides of the chassis assembly. The front end of the chassis assembly is provided with a harvesting portion. The front part of the upper end of the chassis assembly is provided with a driving cabin, and the middle part of the upper end is provided with a power mechanism, and the rear part of the upperend is provided with a grass holding hopper. The harvesting portion and the grass holding hopper are communicated through a grass output portion. The power mechanism provides power for the travellingmechanisms, the harvesting portion, and the grass output portion. The grass output portion conveys grass harvested by the harvesting portion to the grass holding hopper. Compared with the prior art,a threshing component on a conventional harvester is removed, so weight is reduced, and the corresponding grass holding hopper is arranged to collect grass harvested by the harvesting portion, so thatweight of the harvester is reduced, and in addition, the harvester can be used to harvest grass.