PROBLEM TO BE SOLVED: To prevent separated substance of an object to be cooled in a vacuum cooling device from entering into a vacuum pipe without reducing an effective volume within a processing tank.SOLUTION: The present invention relates to a vacuum cooling device including a processing tank 2 for storing an object to be cooled and a vacuum generating device 1 connected to the processing tank 2 by a vacuum pipe 5 so as to suck gas in the processing tank and a heat exchanger 4 at the midway part of the vacuum pipe 5 to cool the sucked gas so as to make vacuum in the processing tank to evaporate moisture from the object to be cooled stored in the processing tank to perform a cooling operation, and a shield plate 7 for preventing separated substances such as drips or pieces separated from the object to be cooled from being fed to a deeper side of the vacuum pipe is arranged at a location near a connection part with the processing tank 2 in the vacuum pipe 5, the vacuum pipe 5 has a large diameter at a part wh
