To prevent space of a machine from being increased when an internal heat exchanger and a bypass circuit are mounted on a refrigeration cycle device.

The refrigeration cycle device includes: a primary circuit comprising a compressor, a condenser, a primary expansion valve, and an evaporator sequentially interconnected via refrigerant pipes; and a bypass circuit having a bypass refrigerant expansion valve, branching off from the primary circuit between the condenser and the primary expansion valve, and merging with the primary circuit between the evaporator and the compressor. The refrigeration cycle device further includes: an auxiliary heat exchanger having an internal heat exchanger exchanging heat between the refrigerant pipe between the condenser and the primary expansion valve, and the refrigerant pipe between the evaporator and the compressor, and a bypass heat exchanger exchanging heat between the refrigerant pipe between the condenser and the primary expansion valve, and the refrigerant pipe that is in the bypass circuit after the bypass refrigerant expansion valve. The refrigerant pipe between the condenser and the primary expansion valve in the internal heat exchanger and the refrigerant pipe between the condenser and the primary expansion valve in the bypass heat exchanger are at least partially overlapped.