The purpose of our invention is to provide a purification column that contains an adsorbent and shows excellent adsorptivity. In order to achieve the purpose, our invention is provided with the following structure. Specifically, this purification column is provided with an adsorbent and a case that contains the adsorbent and has a tubular housing and treatment fluid supply port and discharge port at both ends of the housing. The purification column is characterized in that: a distribution plate is disposed at least on one end face side of the adsorbent； the distribution plate has a plurality of openings that allow communication of the treatment fluid, a support body, and a protrusion extending from the supporting body to the adsorbent side； and at least part of the protrusion is inserted into the adsorbent.
