A bus bar structure and an inverter-integrated electric compressor that absorb an impact while ensuring vibration resistance are provided. A bus bar structure used for an inverter-integrated electric compressor having a compressor; an electric motor for driving the compressor; an inverter device for converting DC power from a high-voltage power supply to AC power and supplying it to the motor; and a housing for accommodating the compressor, the electric motor, and the inverter device, the inverter device being formed of a circuit board and an electrical component, and an insulating resin for connecting and wiring the circuit board and the electrical component being applied. The bus bar structure is formed of a main body, which is integrally formed of the insulating resin, and an external connecting portion exposed from the insulating resin, the external connecting portion has a bent extending portion that is bent and extends with respect to the main body, and an elastic portion for absorbing vibration of the bus bar structure is formed in part of the bent extending portion.