Provided is an air conditioner capable of preventing a soldering defect when a circuit element is installed on a circuit board. The air conditioner includes a circuit board configured to form a circuit, a choke coil installed on the circuit board and having a wire wound around on a core, and a support device installed at a lower side of the choke coil to support the choke coil, and provided with a through-hole allowing the wire to pass therethrough, wherein the support device includes a support portion that protrudes from a lower surface of the support device to support the choke coil installed on the circuit board at an interval from the circuit board, the support portion disposed to be spaced apart from the through-hole in a direction away from an outer edge of the support device.