The utility model discloses a weight sorting device for commodity circulation, comprises a workbench, the workstation upper surface is equipped with the conveyer belt of a set of of each other parallel, workstation one side is equipped with the letter sorting mechanism of weighing, the workstation front surface is equipped with the controller, be equipped with the battery in the controller, the battery links to each other with the controller electrical property, the controller links to each other with the letter sorting mechanism electrical property of weighing. The beneficial effects of the utility model are that, easy operation, the removal is convenient, can sort according to the weight of article, avoids piling up the condition of the extrusion damage of appearance together at the in -process of transportation, convenient and practical.