The invention relates to a plug-tray vegetable harvester. The plug-tray vegetable harvester comprises a vehicle body, a first conveyor belt, a ridge stirring assembly, a sloping plate, a harvesting scissors assembly, a second conveyor belt, a scrapping plate and a storage box, wherein the first conveyor belt is arranged on the vehicle body, and to-be-harvested plug-tray vegetables are horizontallyconveyed on the first conveyor belt; the ridge stirring assembly is arranged above the first conveyor belt, and the to-be-harvested plug-tray vegetables are stirred orderly; the sloping plate is arranged above the first conveyor belt and cooperatively used with the ridge stirring assembly; the harvesting scissors assembly is arranged under the ridge stirring assembly; the second conveyor belt isarranged under the first conveyor belt, and the conveying direction of the second conveyor belt is perpendicular to the conveying direction of the first conveyor belt; the scrapping plate is arrangedat one side of the sloping plate, can slide along the sloping plate, and can push the plug-tray vegetables after the roots are cut off on the sloping plate to the second conveyor belt. Compared with the prior art, the automatic plug-tray vegetable harvester can meet the requirements of collecting and harvesting of the plug-tray planting vegetables, through the combined action of each module of theplug-tray vegetable harvester, the vegetables in plug trays can be placed into the storage box orderly and cleanly, the automation degree of the whole plug-tray vegetable harvester is high, and the harvesting efficiency is improved.