A method of controlling a refrigerator, the refrigerator comprising: a main body partitioned into a refrigerating chamber and a freezing chamber, a refrigerating chamber evaporator disposed in the refrigerating chamber, a freezing chamber evaporator disposed in the freezing chamber, a compressor for supplying refrigerant to the refrigerating chamber evaporator and the freezing chamber evaporator; and a 3-way valve for controlling the refrigerant introduced from the compressor to the freezing chamber evaporator and the refrigerating chamber evaporator; the method comprises the steps of: checking temperatures of the refrigerating chamber and the freezing chamber; and operating the refrigerating chamber and the freezing chamber at the same time; after the simultaneous operation of the refrigerating chamber and the freezing chamber, cooling the refrigerating chamber; after the cooling of the refrigerating chamber, cooling the freezing chamber; and after the cooling of the freezing chamber, recovering the refrigerant from at least one of the refrigerating chamber evaporator and the freezing chamber evaporator, wherein recovering the refrigerant includes stopping a condenser fan for ventilating an air into a condenser and driving a freezing chamber fan in a state where the condenser fan is being stopped. a main body partitioned into a refrigerating chamber and a freezing chamber, a refrigerating chamber evaporator disposed in the refrigerating chamber, a freezing chamber evaporator disposed in the freezing chamber, a compressor for supplying refrigerant to the refrigerating chamber evaporator and the freezing chamber evaporator; and a 3-way valve for controlling the refrigerant introduced from the compressor to the freezing chamber evaporator and the refrigerating chamber evaporator; the method comprises the steps of: checking temperatures of the refrigerating chamber and the freezing chamber; and operating the refrigerating chamber and the freezing chamber at the same time; after the simultaneous operation of the refrigerating chamber and the freezing chamber, cooling the refrigerating chamber; after the cooling of the refrigerating chamber, cooling the freezing chamber; and after the cooling of the freezing chamber, recovering the refrigerant from at least one of the refrigerating chamber evaporator and the freezing chamber evaporator, wherein recovering the refrigerant includes stopping a condenser fan for ventilating an air into a condenser and driving a freezing chamber fan in a state where the condenser fan is being stopped. checking temperatures of the refrigerating chamber and the freezing chamber; and operating the refrigerating chamber and the freezing chamber at the same time; after the simultaneous operation of the refrigerating chamber and the freezing chamber, cooling the refrigerating chamber; after the cooling of the refrigerating chamber, cooling the freezing chamber; and after the cooling of the freezing chamber, recovering the refrigerant from at least one of the refrigerating chamber evaporator and the freezing chamber evaporator, wherein recovering the refrigerant includes stopping a condenser fan for ventilating an air into a condenser and driving a freezing chamber fan in a state where the condenser fan is being stopped.