An ice making device includes: an ice making part in which an evaporator is incorporated; a refrigerating circuit for ice making including a compressor, a condenser, an electronic expansion valve, and the evaporator, the refrigerating circuit being configured to circulate a refrigerant through the compressor, the condenser, the electronic expansion valve, and the evaporator in this order to produce ice in the ice making part; and a controller configured to increase a circulation amount of the refrigerant in the refrigerating circuit and then reduce the circulation amount in accordance with reduction in a cooling load in the ice making part when receiving an ice making command, and adjust the circulation amount such that a degree of superheat is equal to or lower than 2° C.