The purpose of the present invention is to prevent lowering of oil concentration and oil exhaustion in a compressor if refrigeration oil incompatible with a refrigerant is used. This refrigeration cycle device is equipped with: a refrigerant circuit; and a bypass path 9 which branches between a compressor 1 and a four-way valve 2 and is connected to an accumulator 700. The interior of the accumulator 700 is provided with an inflow pipe 720 which has a plurality of oil returning mechanisms 710a, 710b of varying heights and is connected to the compressor 1. The refrigeration oil has a characteristic incompatible with the refrigerant. The outlet 9a of the bypass path 9 within the accumulator 700 is provided at a position between the oil returning mechanism 710a located in the lowest position and the oil returning mechanism 710b located in the highest position among the plurality of oil returning mechanisms 710a, 710b.