 quick freezing method according to the present invention includes maintaining a temperature of approximately −00 degrees C. or less as a temperature inside a freezing store which includes a door for bringing in and taking out an object-to-be-frozen, decreasing a gas pressure inside the freezing store to a pressure less than atmospheric pressure, and freezing the object-to-be-frozen while sending cold air at a wind velocity of 0 to 0 m/sec to the object-to-be-frozen placed in the freezing store.  I