SPECIMEN STORAGE DEVICE

A specimen-preserving implement (1) of the present invention includes a medium-containing section (12) in which a medium (2) holding a specimen is accommodated, a degradation inhibitor (3) in liquid form that inhibits degradation of a sample to be tested contained in the specimen, an agent holder (4) capable of being impregnated with the degradation inhibitor, and a containing section (6) of a desiccant, the degradation inhibitor (3) transfers to the medium (2) by placing the medium (2) in the medium-containing section (12) in a state in which the agent holder (4) is impregnated with the degradation inhibitor (3), and the desiccant (61) is enabled to absorb humidity released from the degradation inhibitor (3) without directly contacting the agent holder (4), in a state in which the medium (2) is accommodated in the medium-containing section (12).