since the solenoid valves may easily be programmed digitally the solenoid valves serve a function of opening a path of the first and the second heat transfer fluids as described above the circulation of the heat transfer fluid is divided into the hot heat exchanger and the cold heat exchanger for the heat exchange of two cycles thereby simplifying the structure of a magnetic refrigerating cycle in addition in accordance with the system since the heat transfer fluid at the atmospheric temperature is injected to the magnetocaloric material the heat transfer fluid is heated and cooled more according to a state of the material to improve an efficiency of the heat exchanger moreover since the magnetic refrigerator is divided into the hot heat exchanger and the cold heat exchanger 163 amounts of the first heat transfer fluid and the second heat transfer fluid 17 bb are controlled to be different therefore a larger amount of the first heat transfer fluid may be flown to the hot side of the magnetic heat exchange unit to maximize the cooling of the magnetocaloric material a single magnetic heat exchange unit may be used due to a use of the 3port 2way solenoid valve thereby simplifying the structure and the cycle is systemized thereby being capable of controlling a heat exchanging time a pressure and.