The invention discloses a full-automatic carrot cleaning, grading and packing device, which comprises a frame, wherein the front end of the frame is provided with a feeding hole; a cleaning device is arranged at the rear end of the feeding hole; the cleaning device is connected with a conveyer belt; a data analysis and acquisition monitoring device connected with a computer system is arranged above the conveyer belt; a separating device which is connected with the data analysis and acquisition monitoring device and used for separating carrot according to different specifications is arranged on the conveyer belt; and the separating device is connected with an automatic packing device. The device can realize unmanned cleaning, grading and boxing of the whole process, is high in efficiency and speed, strong in analysis objectivity and comprehensive in grading, and saves a large amount of labor force. The carrot cleaning, grading and boxing device realizes cleaning and boxing of carrot by full-automatic control, and can quickly acquire the appearance image of the moving carrot; through a camera, the appearance information is extracted more objectively; identification of the appearance information and quality grading are more scientific and objective through a computer; and the device applied to industrial production improves the production efficiency.