Refrigerating and freezing device

The utility model relates to a refrigerating and freezing device which comprises a box body, a refrigerating device, a refrigerating device, a refrigerating device and a refrigerating device, wherein a first storage chamber and a second storage chamber are defined in the box body; the first cold supply assembly is configured to provide cold energy for the first storage chamber, and the first cold supply assembly comprises a first evaporator used for exchanging heat with airflow flowing through the first cold supply assembly to form cooling airflow; and the second cold supply assembly is configured to provide cold energy for the second storage chamber and provide cold energy for the first storage chamber during the defrosting period of the first evaporator. In other words, when the first evaporator defrosts, the first storage chamber can still obtain certain cold energy from the second cold supply assembly, temperature rise in the first storage chamber during defrosting of the first evaporator is effectively r