PROBLEM TO BE SOLVED: To provide an ultrasonic probe capable of receiving high-order harmonic waves with high sensitivity and reducing the attenuation of transmitted ultrasonic waves, and an ultrasonic diagnostic apparatus including such an ultrasonic probe.SOLUTION: The ultrasonic probe includes a plurality of piezoelectric elements arranged in concave form from the direction of a subject a holding part forming a space between itself and the piezoelectric elements on the subject side of the piezoelectric elements, and a liquid provided in the space. The ultrasonic diagnostic apparatus includes the ultrasonic probe.COPYRIGHT: (C)2012,JPO&INPIT【課題】高次高調波を高感度で受信でき、送信する超音波の減衰を低減させる超音波探触子、およびかかる超音波探触子を具備する超音波診断装置を提供する。【解決手段】超音波探触子は、被検体方向から向かって凹面状に複数並べられた圧電素子と、圧電素子の被検体側に、圧電素子と空間を形成する保持部と、空間内に設けられた液体と、を有し、超音波診断装置はかかる超音波探触子を有する。【選択図】図3