Provided is a refrigeration and freezing apparatus (1), comprising: a case body (10), having internally defined a refrigerated compartment (11) and a variable-temperature compartment (12), and an air duct (13) located behind the refrigerated compartment (11) and variable-temperature compartment (12); an evaporator (20), placed vertically in the air duct (13) so as to be used for heat exchange with the air flowing therethrough and thus generating a cooling air flow; a refrigeration fan (30), arranged in the air duct (13) so as to be controlled to activate when it is necessary for the refrigerated compartment (11) to cool, thus driving the cooling air flow to flow toward the refrigerated compartment (11); a variable-temperature fan (40), arranged in the air duct (13) so as to be controlled to activate when it is necessary for the variable-temperature compartment (12) to cool, thus driving the cooling air flow to flow toward the variable-temperature compartment (12); an air-blocking apparatus (50), arranged in the air duct (13) and configured to stop the cooling air flow from entering the variable-temperature compartment (12) when the variable-temperature fan (40) is in a stopped state, and to cause the cooling air flow to enter the variable-temperature fan from bottom to top when the variable-temperature fan is in an operating state, and thus to enter the variable-temperature compartment. The invention reduces the effect on the temperature by the variable-temperature compartment (12) on the refrigerated compartment (11), and the air heat-exchange path of the variable-temperature compartment (12) is longer, such that the range of temperature variation is wider.