The invention provides a refrigerator. Power consumption is inhibited, and the temperature inside the refrigerator can be properly maintained. The refrigerator includes a storage box such as a refrigeration chamber or a freezing chamber; a freezing circulation part; a cooling fan for supplying air cooled by the freezing circulation part to the storage box; a storage box temperature detection part (an R sensor, an F sensor) for detecting the temperature of the storage box; an evaporator temperature detection part (an evaporator outlet sensor, an evaporator inlet sensor) for detecting the temperature of an evaporator forming the freezing circulation part; and a control part (a control portion) for controlling and inhibiting the rotating speed of the cooling fan when the temperature (the temperature inside the box), detected by the storage box temperature detection part, of the storage box and the temperature (a temperature difference (delta T) of the temperature of the evaporator), detected by the evaporator temperature detection part moves within a preset allowed range during a preset determined period of time.