In the operation method of the acoustic wave measuring device and the acoustic wave measuring device, the operation of selecting the measurement method and the measurement result by the operator is reduced, the measurement target is measured quickly and easily with a small number of steps, and the variation by the operator is further reduced. To be able to make measurements. The acoustic wave measuring device (1) includes an image display unit (14) for displaying an acoustic wave image, a measurement target designation receiving unit (28) for receiving designation of a measurement target, and an acoustic sound displayed on the image display unit (14). The position designation reception unit (30) that receives the designation of the position of the measurement target on the wave image, the measurement method information reception unit (32) that receives the measurement method information indicating the measurement method, and the measurement target designation reception unit (32) accept. Measurement based on the measurement target and the detection measurement algorithm setting unit (29) that sets the detection measurement algorithm based on the measurement method information received by the measurement method information reception unit (32), and the received position and detection measurement algorithm. It is provided with a measurement unit (31) that detects an object and measures the detected measurement object.音響波計測装置及び音響波計測装置の作動方法において、操作者による計測方法や計測結果の選択作業を削減し、少ない手数で迅速かつ簡単に計測対象の計測を行い、さらに操作者によるバラつきを低減した計測を行うことができるようにする。音響波計測装置（１）は、音響波画像を表示する画像表示部（１４）と、計測対象の指定を受け付ける計測対象指定受付部（２８）と、画像表示部（１４）に表示された音響波画像上の計測対象の位置の指定を受け付ける位置指定受付部（３０）と、計測方法を示す計測方法情報を受け付ける計測方法情報受付部（３２）と、計測対象指定受付部（３２）が受け付けた計測対象と、計測方法情報受付部（３２）が受け付けた計測方法情報に基づいて検出計測アルゴリズムを設定する検出計測アルゴリズム設定部（２９）と、受け付けた位置と検出計測アルゴリズムに基づいて、計測対象を検出し、かつ検出した計測対象について計測を行う計測部（３１）とを備える。
