The invention provides a device for crop harvesting and relates to the field of agricultural production equipment. The device comprises a device body and a power mechanism, a cutting mechanism and anoperation mechanism which are arranged on the device body, and the cutting mechanism comprises a cutting disk and a rotation shaft; the cutting disk is connected to one end of the rotation shaft, theother end of the rotation shaft is rotatably connected with the power mechanism, and the operation mechanism is used for controlling the cutting mechanism to harvest crop. According to the device forcrop harvesting, rice harvesting is conducted very conveniently by operating the handle, the device can be not directly in contact with rice leaves in cutting, workers are prevented from being cut bythe rice leaves, an arc baffle can neaten the rice very orderly at the same time of harvesting, and following operation is conducted conveniently. Meanwhile, the device is simple in structure and convenient to carry, can be suitable for various crops which are planted on any terrain, and can greatly improve the harvesting efficiency.