The invention relates to a ramie harvester. The ramie harvester comprises a body, a header arranged on the front part of the body, a longitudinal conveying device arranged on the side surface of the body and a stalk collecting box arranged on the rear part of the body; the header comprises a cutting device arranged at the bottom of the header, a transverse conveying device arranged on the upper part of the cutting device, and a splitting and setting device matched with the transverse conveying device; the transverse conveying device of the ramie harvester comprises a single-row transverse conveying chain arranged at the same height with the splitting and setting device; the heights of the splitting and setting device and the single-row transverse conveying chain are regulated to be greater than the height of the center of gravity of the ramie stalk cut by the cutting device. Due to the adopted single-row transverse conveying chain, compared with the ramie harvester with double rows or more rows of conveying chains in the prior art, the weight and the occupied space of the header are greatly reduced, and therefore, the power consumption of the ramie harvester is greatly reduced and the energy source is saved.