PROBLEM TO BE SOLVED: To provide an ultrasound diagnostic apparatus and an ultrasound probe capable of properly informing a user of the degree of deterioration of the mechanical probe.SOLUTION: An ultrasound diagnostic apparatus 1 is connectable with an ultrasound probe 2 comprising a piezoelectric transducer 201 and a drive unit 202 which mechanically drives the piezoelectric transducer 201. The ultrasound diagnostic apparatus 1 comprises: a drive control unit 9 for driving the drive unit 202 at a predetermined driving speed a drive information acquisition unit 10 for acquiring as drive information for the drive unit 202 at least one of drive voltage information supplied to the drive unit 202 and drive speed information of the drive unit 202 and a determination unit 11 for determining the degree of deterioration of the ultrasound probe 2, on the basis of the acquired drive information.COPYRIGHT: (C)2015,JPO&INPIT【課題】使用者にメカプローブの劣化度合いを適切に知らせることができる超音波診断装置及び超音波プローブを提供する。【解決手段】圧電変換素子201及び前記圧電変換素子201を機械的に駆動させる駆動部202を備えた超音波プローブ2と接続可能に構成された超音波診断装置1であって、前記駆動部202を所定の駆動速度で駆動させる駆動制御部9と、前記駆動部202の駆動情報として前記駆動部に供給された駆動電圧情報及び前記駆動部の駆動速度情報の少なくともいずれか一方を取得する駆動情報取得部10と、取得した前記駆動情報に基づき前記超音波プローブ2の劣化度合いを判定する判定部11と、を備えた。【選択図】図1