The present invention has an object to provide an integrated electric compressor further downsized. An inverter control apparatus comprises: a power board 16 converting a direct current supplied from a high voltage power supply to an alternating current and applying it to a motor; and a control circuit board 15 controlling the application of the alternating current to the motor, wherein the power board 16 and the control circuit board 15 respectively have tall components 28 and 52 surface-mounted on one surfaces, which are relatively taller than components on the other surfaces, and the one surfaces face each other. The tall components 28 and 52 of the power board 16 and the control circuit board 15 are placed facing each other without interfering with each other in projection directions thereof.