A refrigeration apparatus which uses a refrigerant that operates in a region including a critical range, the refrigeration apparatus comprising: a compression mechanism having a first compressor (36, 303) that has a first low-pressure compression element for increasing the pressure of the refrigerant and a first high-pressure compression element for increasing the pressure of the refrigerant more than the first low-pressure compression element, and a second compressor that has a second low-pressure compression element for increasing the pressure of the refrigerant and a second high-pressure compression element for increasing the pressure of the refrigerant more than the second low-pressure compression element; a heat-source-side heat exchanger which functions as a heater or a cooler of the refrigerant; an expansion mechanism (5a, 5b, 5c, 5d) for decompressing the refrigerant; a utilization-side heat exchanger which functions as a heater or cooler of the refrigerant; an intercooler for cooling the refrigerant that passes therethrough; wherein the intake side of the second low-pressure compression element and the intake side of the first low-pressure compression element of the first compressor are connected; and the discharge side of the second high-pressure compression element and the discharge side of the first high-pressure compression element of the first compressor merge together, characterized in that the refrigeration apparatus further comprises: a first intermediate refrigerant pipe (881, 883) for causing the refrigerant discharged from the first low-pressure compression element to pass through the intercooler and to be sucked into the first high-pressure compression element; and a second intermediate refrigerant pipe (884, 885) for causing the refrigerant discharged from the second low-pressure compression element to pass through the intercooler and to be sucked into the second high-pressure compression element. a compression mechanism having a first compressor (36, 303) that has a first low-pressure compression element for increasing the pressure of the refrigerant and a first high-pressure compression element for increasing the pressure of the refrigerant more than the first low-pressure compression element, and a second compressor that has a second low-pressure compression element for increasing the pressure of the refrigerant and a second high-pressure compression element for increasing the pressure of the refrigerant more than the second low-pressure compression element; a heat-source-side heat exchanger which functions as a heater or a cooler of the refrigerant; an expansion mechanism (5a, 5b, 5c, 5d) for decompressing the refrigerant; a utilization-side heat exchanger which functions as a heater or cooler of the refrigerant; an intercooler for cooling the refrigerant that passes therethrough; wherein the intake side of the second low-pressure compression element and the intake side of the first low-pressure compression element of the first compressor are connected; and the discharge side of the second high-pressure compression element and the discharge side of the first high-pressure compression element of the first compressor merge together, characterized in that the refrigeration apparatus further comprises: a first intermediate refrigerant pipe (881, 883) for causing the refrigerant discharged from the first low-pressure compression element to pass through the intercooler and to be sucked into the first high-pressure compression element; and a second intermediate refrigerant pipe (884, 885) for causing the refrigerant discharged from the second low-pressure compression element to pass through the intercooler and to be sucked into the second high-pressure compression element. the intake side of the second low-pressure compression element and the intake side of the first low-pressure compression element of the first compressor are connected; and the discharge side of the second high-pressure compression element and the discharge side of the first high-pressure compression element of the first compressor merge together, characterized in that the refrigeration apparatus further comprises: a first intermediate refrigerant pipe (881, 883) for causing the refrigerant discharged from the first low-pressure compression element to pass through the intercooler and to be sucked into the first high-pressure compression element; and a second intermediate refrigerant pipe (884, 885) for causing the refrigerant discharged from the second low-pressure compression element to pass through the intercooler and to be sucked into the second high-pressure compression element. a first intermediate refrigerant pipe (881, 883) for causing the refrigerant discharged from the first low-pressure compression element to pass through the intercooler and to be sucked into the first high-pressure compression element; and a second intermediate refrigerant pipe (884, 885) for causing the refrigerant discharged from the second low-pressure compression element to pass through the intercooler and to be sucked into the second high-pressure compression element.