To provide a high-humidity refrigerator with a sterilization function and a sterilization high-humidity refrigeration method that can suppress the deterioration in the quality, for example, of foodstuffs by refrigerating the them with high humidity, can evenly sterilize the entire refrigerator, and can suppress the reduction in the freshness, for example, of fruit, vegetables, and flowers by dispensing ethylene.

Ozone is contained into cold water in a water tank 21 by an ozone-generating device 31, the cold water containing ozone is spouted from a shower part 5 in a refrigeration room 3, and slow air is blown from a blower 11 to the cold water containing ozone being spouted, thus circulating water vapor containing the ozone in the refrigeration room 3, moisturizing the refrigeration room 3 for cooling, and at the same time sterilizing the refrigeration room 3 and foodstuffs. Also, ethylene can be dispensed by the ozone, thus suppressing the reduction in the freshness of fruit G in the refrigeration room 3.