Cryopreservation device

A cryopreservation vessel comprising:

• a vessel body which holds a low-temperature liquefied gas;
• a cap which closes an opening section of the vessel body and has a plurality of through holes that are formed so as to pass through in a vertical direction;
• sheath tubes, each including a hollow portion disposed in one of the through holes of the cap;
• and
• ampoule storing tools which are housed so as to be able to pass through the hollow portions of the sheath tubes, wherein
• a plurality of gas permeable holes are formed in each of the sheath tubes, and
• the ampoule storing tools are each comprised of a support pillar and a plurality of ampoule storing sections which are equipped with the support pillar so as to be arrayed in a vertical direction of the support pillar.