To provide a cooling storage capable of effectively reducing noise of a positive-displacement circulation pump disposed in a circulation circuit, in transmitting waste heat radiated by a refrigerating device to a prescribed part through the circulation circuit.

This cooling storage 1 cools a storage compartment in a heat insulating housing 10 by a Stirling refrigerating machine 110. The waste heat radiated from the Stirling refrigerating machine 100 is transferred to a dew-proofing portion 16 of the heat insulating housing 10 by a high temperature-side second circulation circuit 150. The high temperature-side second circulation circuit 150 circulates a refrigerant by a circulation pump 157 as a positive-displacement pump. A suction-side gas-liquid separator 158 is disposed at a suction side of the circulation pump 157, and a discharge-side gas-liquid separator 159 is disposed at a discharge side. Long axes of the suction-side gas-liquid separator 158 and the discharge-side gas-liquid separator 159 are respectively inclined so that their upper parts are applied as inlet sides and lower parts are applied as outlet sides. The circulation pump 158, the suction-side gas-liquid separator 158 and the discharge-side gas-liquid separator 159 are received in a sound insulation space 180.