PROBLEM TO BE SOLVED: To provide a threshing device capable of improving the quality of grain subjected to threshing / sorting processing. SOLUTION: An oscillating sorting device (11) is provided on the upper part of a sorting chamber, and a transfer shelf (12) formed from a plate-shaped body and a transfer shelf (12) are provided on the upper part of the oscillating sorting device (11). The upper sorting net (14) is provided on the rear side, the lower sorting net (16) is provided under the swing sorting device (11), and the upper sorting net (14) and the lower sorting net (16) are arranged in the vertical direction. An intermediate sorting net (18) is provided between the upper sorting net (14) and the lattice sorting of the intermediate sorting net (18) and the lower sorting net (16). The mesh of the intermediate screening net (18) was made larger than that of the lower screening net (16). [Selection diagram] Fig. 4【課題】脱穀・選別処理された穀粒の品質を高めることができる脱穀装置を提供する。【解決手段】選別室の上部に揺動選別装置（１１）を設け、揺動選別装置（１１）の上部に、板状体から形成された移送棚（１２）と、移送棚（１２）の後側に上側選別網（１４）を設け、揺動選別装置（１１）の下部に、下側選別網（１６）を設け、上側選別網（１４）と下側選別網（１６）の上下方向の間に、中間選別網（１８）を設け、上側選別網（１４）の格子状の目合いを、中間選別網（１８）と下側選別網（１６）の格子状の目合いよりも大きく形成し、中間選別網（１８）の目合いを下側選別網（１６）の目合いよりも大きく形成した。【選択図】図４
