To provide a auxiliary tool for a pinholder to easily arrange flowers by using a pinholder without any possiblity of damaging a vase even when the opening of the vase is narrow or the bottom part thereof is deep from the opening.

The auxiliary tool for a pinholder is constituted so that a column (3) is erected at the edge (2) of a disk (1) for fitting the pinholder, the head peak part of the column is joined to a frame-like member (4), a beam (5) is disposed to the frame-like member, a ring-like part (6) is provided on the center part of the beam, and a freely detachable rod (7) to be a handle is attached to the ring-like part. The pinholder is fitted to the inner side of the edge (2) of the disk (1), flower materials are stuck to the pinholder through the frame-like member (4) and fixed and then they are taken in and out of the vase by holding the rod (7) in hand.