Inverter-integrated electric compressor

Provided is a low-cost compressor having excellent operation stability which enables the improvement of the stability of a control circuit by shielding electromagnetic noise and the effective prevention of the vibration of a control substrate while the design flexibility is maintained at the same high level as that of conventional ones. An inverter-integrated electric compressor in which a motor is incorporated and a high-voltage circuit for motor drive including an inverter and a control substrate provided with a low-voltage circuit for control are provided in a compressor housing is characterized in that a shield plate made of a material capable of shielding an electromagnetic noise emitted from the high-voltage circuit for motor drive toward the low-voltage circuit for control is interposed between the high-voltage circuit for motor drive and the control substrate, and the shield plate and the control substrate are fixed to each other and both are fixed at a predetermined position in the compressor housing