The invention provides a ricefield eel division device and belongs to the technical field of fishery mechanical devices. The ricefield eel division device comprises a box body and a classification grid and is characterized in that the box body is leaned forwards; the classification grid is arranged on the inner wall of the box body; the classification grid comprises a plurality of classification shafts which are arranged side by side along the horizontal direction; the classification shafts are fixed on a fixed rod; and the classification grid on the front wall of the box body and a bottom plate are respectively provided with ricefield eel output ports. The technical scheme is suitable for automatically classifying ricefield eel seeds; the ricefield eel division device is labor-saving and has high efficiency; the damage to ricefield eels can be greatly reduced; the working efficiency is improved; and the ricefield eel division device is suitable to use in the specification classification of the seeds when the ricefield eels are artificially cultured.