To provide a compressor control device for a refrigerator, capable of preferably controlling both internal temperatures of a cold room and a refrigeration room in a single refrigeration type refrigerator-freezer.

In the control device 19, a condition that stops a compressor motor based on internal temperatures of the cold room and the refrigeration room is set, thereby allowing the compressor motor to be stopped after the internal temperature of the cold room is chilly lowered. Since a condition that starts the operation of the compressor motor is regulated only by the internal temperature of the refrigeration room, cooling in the refrigeration room is started as soon as the internal temperature of the room rises to a cut-on temperature, whereby quality of the freezing storage material is maintained.