Battery pack diagnostic apparatus

Disclosed is a battery pack diagnostic apparatus for diagnosing a battery pack including a battery and a battery management system according to various embodiments. A measurement unit for measuring a voltage and a current of the battery pack, the measurement unit being electrically connected to the output terminal of the battery pack, Obtaining a first measurement value for a current and a current, acquiring a second measurement value, which is information on a voltage and a current of the battery pack measured from the measurement section, and calculating a second measurement value based on the first measurement value and the second measurement value And a controller for analyzing the state of the battery pack.