The invention discloses a reed/crop straw harvesting bundler, and belongs to the technical field of harvesters. The harvesting bundler mainly comprises a cutting knife mechanism, feeding mechanisms, distributing mechanisms, bundling mechanisms, rope conveying mechanisms, rope conveying gear mechanisms, aligning mechanisms, bundle conveying mechanisms and a lifting mechanism. The transverse feeding mechanisms, the longitudinal feeding mechanisms, the distributing mechanisms, the bundling mechanisms, the rope conveying mechanisms, the rope conveying gear mechanisms, the aligning mechanisms and the bundle conveying mechanisms are symmetric about the center of a travelling mechanism. After materials harvested by the harvesting bundler are conveyed to the distributing mechanisms by the feeding mechanisms, the left distributing mechanism and the right distributing mechanism alternately distribute the materials to the two bundling mechanisms, the materials are aligned by the aligning mechanisms and then bundled by the bundling mechanisms, the rope conveying mechanisms convey ropes, and the materials are manually fastened, conveyed out, loaded and carried away by the bundle conveying mechanisms. According to the harvesting bundler, harvesting is combined with bundling, harvesting operation is completed once, labor is saved, transportation is facilitated, production efficiency is improved, and production cost is reduced.