The utility model relates to an orderly vegetable harvester and belongs to the technical field of agricultural and forestry machinery. The orderly vegetable harvester comprises a circular belt type conveying device mounted on travel wheels. A vegetable cutting mechanism extending forwards is mounted at the front end of the conveying device through bolts and can be a root-removed harvesting device or a root-out harvesting device. Through single-acting blade doing planar motion, the difficult problem that a reciprocating dual-acting blade is easy to be jammed by sand is solved effectively. Various harvesting requirements can be met since the orderly vegetable harvester is provided with two sets of cutting mechanisms which are changeable; besides, orderly arranging of harvested vegetables is achieved by means of the moderate conveying device. Accordingly, compared with the prior art, the orderly vegetable harvester has the advantages of remarkable substantiality and progress.