This disclosure discloses a motor control device configured to control a motor. The motor control device includes an inverter part, a gate driving circuit, a PWM generation circuit, at least one gate buffer, and a control part. The inverter part is configured to convert direct current into alternate current in response to a motor drive command. The gate driving circuit is configured to drive the inverter part. The PWM generation circuit is configured to generate a PWM signal applied to the gate driving circuit. The at least one gate buffer is disposed between the gate driving circuit and the PWM generation circuit. The control part is configured to apply a test signal to the gate buffer to determine abnormality of the gate buffer.