In a case where two types of tillage tines arc selectively attached, it is intended to make both of two types of tillage tines provide good tilling performance. An arrangement structure of a tillage tine for a tilling apparatus includes: a revolution shaft； and a plurality of flanges disposed at an interval in an axial direction of the revolution shaft, the flange including a plurality of attachment portions configured to selectively mount a plurality of first tillage tines and a plurality of second tillage tines other than the first tillage tines, wherein an arrangement direction of the first tillage tines adjacent to each other and facing an identical direction under a state where the plurality of first tillage tines are attached to the plurality of flanges is different from an arrangement direction of the second tillage tines adjacent to each other and facing an identical direction under a state where the plurality of second tillage tines are attached to the plurality of flanges. Fig 1
