Refrigerating and freezing device

The invention provides a refrigerating and freezing device which comprises a box body, a refrigerating unit, a refrigerating unit and a refrigerating unit. An air vent is formed in the wall of the storage space; the air adjusting pipeline communicates with the air vent and is used for conveying air, so that the storage space exchanges air with the external environment; and the gas path adapter is provided with a first interface communicated with the gas adjusting pipeline and a second interface communicated with the gas vent, and a gas flow channel is connected between the second interface and the first interface, so that the gas adjusting pipeline is communicated with the gas vent. According to the refrigerating and freezing device, the air regulating pipeline and the storage space are ingeniously communicated through the air path adapter, and the port of the air regulating pipeline and the air vent of the storage space do not need to be directly combined in a sealed mode, so that the communication mode betw