This creation provides a kind of harvest onion processing unit, maintains the densification of device, and be directed to the biggish onion of sphere diameter, also carries out cutting process with higher processing accuracy. The harvest onion processing unit (1) of this creation has supply unit (2) and cutting process portion (3),Cutting process portion (3) has: roller conveyor (31),So that the state that the cauline leaf of onion is involved between what a pair of rolls is transported； And cutter mechanism (4),Cutoff process is carried out to the cauline leaf of the onion by roller conveyor (31) conveying,Cutter mechanism (4) has: a pair of of rotary cutter that is, disk sword (40) and take-up reel (41),It is rotated with horizontality； Rotary shaft (43),It is extended downwards from rotary cutter； And power transfering part (5),It is mounted the lower end of what rotary shaft (43).本創作提供一種收穫洋蔥處理裝置，其維持裝置的緊湊化，並且針對球徑較大的洋蔥，亦以較高的處理精確度進行切割處理。本創作的收穫洋蔥處理裝置(1)具備供給部(2)和切割處理部(3)，切割處理部(3)具備：輥式輸送機(31)，以使洋蔥的莖葉捲入於一對輥之間之狀態進行搬送；及刀具機構(4)，對藉由輥式輸送機(31)搬送之洋蔥的莖葉進行切斷處理，刀具機構(4)具備：一對旋轉刀具亦即圓盤刃(40)及接收盤(41)，以水平狀態進行旋轉；旋轉軸(43)，從旋轉刀具向下方延設；及動力傳遞部(5)，被安裝於旋轉軸(43)的下端部。
