The present invention relates to a cage for an underarm suspending experimental animal, comprising: a housing having a top opened and a space formed therein; and an isolator having a cover covering the open top of the housing; A hook portion having a hook bar coupled to the housing in a state of being separated from a bottom surface of the housing; And a grip portion connected to the hook bar so as to be slidable and movable so as to grip an experimental animal. The present invention is advantageous in that a micro gravity environment can be realized under an SPF environment by preventing a hypothetical experiment animal from being exposed to an external polluted atmosphere or the like.
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