An ultrasound diagnostic apparatus includes an ultrasound probe with transducers, memory storing probe identification information and binary state generation unit generating a binary electrical state corresponding to a probe identifier, probe identifier conversion unit converting the electrical state into the probe identifier, read unit reading the probe identification information from the memory, determination unit determining consistency between the probe identifier after conversion and the probe identification information read from the memory, and warning output unit outputting a predetermined warning if the probe identifier is inconsistent with the probe identification information.
