PROBLEM TO BE SOLVED: To safely and efficiently cool a shape-memory alloy.SOLUTION: A cooling device 10 cools a member made of a shape-memory alloy. The cooling device 10 includes: a cooling part 20 for cooling the shape-memory-alloy member or a part coming into contact with the shape-memory-alloy member; refrigerant supply pipe 30 or 31 whose one end is connected to a refrigerant supply source 34 and other end is connected to the cooling part 20 and that supplies refrigerant supplied from the refrigerant supply source 34 to a connecting part 20; and refrigerant discharge pipe 32 or 33 whose one end is connected to the cooling part 20 and that discharges refrigerant discharged from the cooling part 20, from the other end thereof.SELECTED DRAWING: Figure 2【課題】形状記憶合金を安全かつ効率よく冷却する。【解決手段】冷却装置10は、形状記憶合金製部材を冷却する。冷却装置10は、形状記憶合金製部材又は前記形状記憶合金製部材と接触される部位を冷却する冷却部20と、一端が冷媒供給源34に接続される一方で他端が冷却部20と接続され、冷媒供給源34から供給される冷媒を接続部20まで供給する冷媒供給管30,31と、一端が冷却部20に接続され、冷却部20から排気される冷媒をその他端から排出する冷媒排出管32,33と、を備える。【選択図】図2