PROBLEM TO BE SOLVED: To provide a freezing apparatus that quickly vitrifies and freezes an object to be frozen such as cells by spraying flow including ultralow-temperature fine solid particles in freezing the object so as to make a cell survival rate higher in thawing, and a freezing method thereof.SOLUTION: A freezing apparatus that freezes an object to be frozen such as a cell has: a cryopreservation container 60 which houses a cell or the like as the object to be frozen； and a spraying part which continuously sprays a high-speed spraying flow including ultralow-temperature fine solid particles onto the cryopreservation container 60 to freeze the object to be frozen housed in the cryopreservation container. The freezing apparatus has: a support part 71 supporting the cryopreservation container 60； and a spraying position changing part 72 (spraying position changing means) which changes a spraying position of high-speed spraying flow to the cryopreservation container supported by the support part 71.SELECTED DRAWING: Figure 10【課題】解凍時に高い細胞生存率となるように、凍結時に極低温微細固体粒子を含む噴霧流により、細胞などの凍結対象を急速にガラス化凍結する凍結装置、その凍結方法を提供する。【解決手段】細胞などの凍結対象を凍結する凍結装置であって、凍結対象として細胞などを収容する凍結保存容器６０と、凍結保存容器６０に極低温微細固体粒子を含む高速噴霧流を連続的に噴霧して、凍結保存容器に収容された凍結対象を凍結させる噴霧部を有する。この凍結装置は、凍結保存容器６０を支持する支持部７１と、支持部７１に支持された凍結保存容器に対する高速噴霧流の噴霧位置を変更する噴霧位置変更部７２（噴霧位置変更手段）を有する。【選択図】図１０
