A medicinal solution collecting tool of the invention is a medicinal solution collecting tool to be inserted into a medical solution storing section for endoscope reprocessing to collect a medicinal solution from an inside of the medicinal solution storing section, the medicinal solution collecting tool including: a pillar-shaped portion including an insertion end and a withdrawal end a collecting section provided on the insertion end side of the pillar-shaped portion, the collecting section being a cavity for collecting the medicinal solution a collecting port which is an opening provided on a surface of the pillar-shaped portion, the collecting port communicating with the collecting section and a guide section provided on the surface of the pillar-shaped portion, the guide section including a first guide section being convex or concave and parallel to an axial direction of the pillar-shaped portion, and a second guide section provided on the withdrawal end side relative to the first guide section on the surface of the pillar-shaped portion, the second guide section being convex or concave and crossing the axial direction of the pillar-shaped portion.
