PROBLEM TO BE SOLVED: To provide an organ preservation device for preserving an organ which is taken out from a living body, which can select an optimum preserving condition for the organ by analyzing the condition of the organ during preservation.SOLUTION: The organ preservation device includes: an organ preserving part (19) for preserving an organ (18); a preserving liquid perfusion part (20) for perfusing the organ (18) preserved in the organ preserving part with preserving liquid for preserving organs; a temperature control part for controlling the temperature of the organ preserving part; an introduction part (21) for introducing an active component agent into the preserving liquid circulating through the preserving liquid perfusion part (20); a function-evaluating part for evaluating functions of the organ by measuring the rate of flow of the preserving liquid perfusing the organ (18); and an adjusting part (33) for adjusting the temperature of the temperature control part, the type and the introduction