Potato combine harvester is mainly used for root crops, especially potatoes, because different crops have different root sizes and different chain pitches. Potato combine harvester is generally used after removing potatoes. The shovel goes deep into the soil, and the potatoes are transported to the soil removal chain to remove the soil. Then transport the potatoes to the conveyor belt, and then send them to one side of the table to pull them away directly. Some foreign combine harvesters can separate the size of potatoes and potatoes and stones at the same time.